207801990

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:156

約数の個数: 256

約数和(自身を含む): 651386880

約数和(自身を除く): 443584890

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 27, 30, 31, 33, 37, 45, 54, 55, 61, 62, 66, 74, 90, 93, 99, 110, 111, 122, 135, 155, 165, 183, 185, 186, 198, 222, 270, 279, 297, 305, 310, 330, 333, 341, 366, 370, 407, 465, 495, 549, 555, 558, 594, 610, 666, 671, 682, 814, 837, 915, 930, 990, 999, 1023, 1098, 1110, 1147, 1221, 1342, 1395, 1485, 1647, 1665, 1674, 1705, 1830, 1891, 1998, 2013, 2035, 2046, 2257, 2294, 2442, 2745, 2790, 2970, 3069, 3294, 3330, 3355, 3410, 3441, 3663, 3782, 4026, 4070, 4185, 4514, 4995, 5115, 5490, 5673, 5735, 6039, 6105, 6138, 6710, 6771, 6882, 7326, 8235, 8370, 9207, 9455, 9990, 10065, 10230, 10323, 10989, 11285, 11346, 11470, 12078, 12210, 12617, 13542, 15345, 16470, 17019, 17205, 18117, 18315, 18414, 18910, 20130, 20313, 20646, 20801, 21978, 22570, 24827, 25234, 28365, 30195, 30690, 30969, 33855, 34038, 34410, 36234, 36630, 37851, 40626, 41602, 46035, 49654, 51057, 51615, 54945, 56730, 60390, 60939, 61938, 62403, 63085, 67710, 69967, 74481, 75702, 85095, 90585, 92070, 101565, 102114, 103230, 104005, 109890, 113553, 121878, 124135, 124806, 126170, 139934, 148962, 154845, 170190, 181170, 187209, 189255, 203130, 208010, 209901, 223443, 227106, 248270, 255285, 304695, 309690, 312015, 340659, 349835, 372405, 374418, 378510, 419802, 446886, 510570, 561627, 567765, 609390, 624030, 629703, 670329, 681318, 699670, 744810, 769637, 936045, 1049505, 1117215, 1123254, 1135530, 1259406, 1340658, 1539274, 1703295, 1872090, 1889109, 2099010, 2234430, 2308911, 2808135, 3148515, 3351645, 3406590, 3778218, 3848185, 4617822, 5616270, 6297030, 6703290, 6926733, 7696370, 9445545, 11544555, 13853466, 18891090, 20780199, 23089110, 34633665, 41560398, 69267330, 103900995, 207801990]

約数ペア:

[(1, 207801990), (2, 103900995), (3, 69267330), (5, 41560398), (6, 34633665), (9, 23089110), (10, 20780199), (11, 18891090), (15, 13853466), (18, 11544555), (22, 9445545), (27, 7696370), (30, 6926733), (31, 6703290), (33, 6297030), (37, 5616270), (45, 4617822), (54, 3848185), (55, 3778218), (61, 3406590), (62, 3351645), (66, 3148515), (74, 2808135), (90, 2308911), (93, 2234430), (99, 2099010), (110, 1889109), (111, 1872090), (122, 1703295), (135, 1539274), (155, 1340658), (165, 1259406), (183, 1135530), (185, 1123254), (186, 1117215), (198, 1049505), (222, 936045), (270, 769637), (279, 744810), (297, 699670), (305, 681318), (310, 670329), (330, 629703), (333, 624030), (341, 609390), (366, 567765), (370, 561627), (407, 510570), (465, 446886), (495, 419802), (549, 378510), (555, 374418), (558, 372405), (594, 349835), (610, 340659), (666, 312015), (671, 309690), (682, 304695), (814, 255285), (837, 248270), (915, 227106), (930, 223443), (990, 209901), (999, 208010), (1023, 203130), (1098, 189255), (1110, 187209), (1147, 181170), (1221, 170190), (1342, 154845), (1395, 148962), (1485, 139934), (1647, 126170), (1665, 124806), (1674, 124135), (1705, 121878), (1830, 113553), (1891, 109890), (1998, 104005), (2013, 103230), (2035, 102114), (2046, 101565), (2257, 92070), (2294, 90585), (2442, 85095), (2745, 75702), (2790, 74481), (2970, 69967), (3069, 67710), (3294, 63085), (3330, 62403), (3355, 61938), (3410, 60939), (3441, 60390), (3663, 56730), (3782, 54945), (4026, 51615), (4070, 51057), (4185, 49654), (4514, 46035), (4995, 41602), (5115, 40626), (5490, 37851), (5673, 36630), (5735, 36234), (6039, 34410), (6105, 34038), (6138, 33855), (6710, 30969), (6771, 30690), (6882, 30195), (7326, 28365), (8235, 25234), (8370, 24827), (9207, 22570), (9455, 21978), (9990, 20801), (10065, 20646), (10230, 20313), (10323, 20130), (10989, 18910), (11285, 18414), (11346, 18315), (11470, 18117), (12078, 17205), (12210, 17019), (12617, 16470), (13542, 15345)]