187878780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{241}}^1$

素因数の和:388

約数の個数: 144

約数和(自身を含む): 589837248

約数和(自身を除く): 401958468

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 71, 90, 122, 142, 180, 183, 213, 241, 244, 284, 305, 355, 366, 426, 482, 549, 610, 639, 710, 723, 732, 852, 915, 964, 1065, 1098, 1205, 1220, 1278, 1420, 1446, 1830, 2130, 2169, 2196, 2410, 2556, 2745, 2892, 3195, 3615, 3660, 4260, 4331, 4338, 4820, 5490, 6390, 7230, 8662, 8676, 10845, 10980, 12780, 12993, 14460, 14701, 17111, 17324, 21655, 21690, 25986, 29402, 34222, 38979, 43310, 43380, 44103, 51333, 51972, 58804, 64965, 68444, 73505, 77958, 85555, 86620, 88206, 102666, 129930, 132309, 147010, 153999, 155916, 171110, 176412, 194895, 205332, 220515, 256665, 259860, 264618, 294020, 307998, 342220, 389790, 441030, 513330, 529236, 615996, 661545, 769995, 779580, 882060, 1026660, 1043771, 1323090, 1539990, 2087542, 2646180, 3079980, 3131313, 4175084, 5218855, 6262626, 9393939, 10437710, 12525252, 15656565, 18787878, 20875420, 31313130, 37575756, 46969695, 62626260, 93939390, 187878780]

約数ペア:

[(1, 187878780), (2, 93939390), (3, 62626260), (4, 46969695), (5, 37575756), (6, 31313130), (9, 20875420), (10, 18787878), (12, 15656565), (15, 12525252), (18, 10437710), (20, 9393939), (30, 6262626), (36, 5218855), (45, 4175084), (60, 3131313), (61, 3079980), (71, 2646180), (90, 2087542), (122, 1539990), (142, 1323090), (180, 1043771), (183, 1026660), (213, 882060), (241, 779580), (244, 769995), (284, 661545), (305, 615996), (355, 529236), (366, 513330), (426, 441030), (482, 389790), (549, 342220), (610, 307998), (639, 294020), (710, 264618), (723, 259860), (732, 256665), (852, 220515), (915, 205332), (964, 194895), (1065, 176412), (1098, 171110), (1205, 155916), (1220, 153999), (1278, 147010), (1420, 132309), (1446, 129930), (1830, 102666), (2130, 88206), (2169, 86620), (2196, 85555), (2410, 77958), (2556, 73505), (2745, 68444), (2892, 64965), (3195, 58804), (3615, 51972), (3660, 51333), (4260, 44103), (4331, 43380), (4338, 43310), (4820, 38979), (5490, 34222), (6390, 29402), (7230, 25986), (8662, 21690), (8676, 21655), (10845, 17324), (10980, 17111), (12780, 14701), (12993, 14460)]