638382690

素因数分解:

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

素因数の和:158

約数の個数: 216

約数和(自身を含む): 1916057052

約数和(自身を除く): 1277674362

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 31, 33, 45, 55, 61, 62, 66, 90, 93, 99, 110, 121, 122, 155, 165, 183, 186, 198, 242, 279, 305, 310, 330, 341, 363, 366, 465, 495, 549, 558, 605, 610, 671, 682, 726, 915, 930, 961, 990, 1023, 1089, 1098, 1210, 1342, 1395, 1705, 1815, 1830, 1891, 1922, 2013, 2046, 2178, 2745, 2790, 2883, 3069, 3355, 3410, 3630, 3751, 3782, 4026, 4805, 5115, 5445, 5490, 5673, 5766, 6039, 6138, 6710, 7381, 7502, 8649, 9455, 9610, 10065, 10230, 10571, 10890, 11253, 11346, 12078, 14415, 14762, 15345, 17019, 17298, 18755, 18910, 20130, 20801, 21142, 22143, 22506, 28365, 28830, 30195, 30690, 31713, 33759, 34038, 36905, 37510, 41602, 43245, 44286, 52855, 56265, 56730, 58621, 60390, 62403, 63426, 66429, 67518, 73810, 85095, 86490, 95139, 104005, 105710, 110715, 112530, 116281, 117242, 124806, 132858, 158565, 168795, 170190, 175863, 187209, 190278, 208010, 221430, 228811, 232562, 293105, 312015, 317130, 332145, 337590, 348843, 351726, 374418, 457622, 475695, 527589, 581405, 586210, 624030, 644831, 664290, 686433, 697686, 879315, 936045, 951390, 1046529, 1055178, 1144055, 1162810, 1289662, 1372866, 1744215, 1758630, 1872090, 1934493, 2059299, 2093058, 2288110, 2637945, 3224155, 3432165, 3488430, 3868986, 4118598, 5232645, 5275890, 5803479, 6448310, 6864330, 7093141, 9672465, 10296495, 10465290, 11606958, 14186282, 19344930, 20592990, 21279423, 29017395, 35465705, 42558846, 58034790, 63838269, 70931410, 106397115, 127676538, 212794230, 319191345, 638382690]

約数ペア:

[(1, 638382690), (2, 319191345), (3, 212794230), (5, 127676538), (6, 106397115), (9, 70931410), (10, 63838269), (11, 58034790), (15, 42558846), (18, 35465705), (22, 29017395), (30, 21279423), (31, 20592990), (33, 19344930), (45, 14186282), (55, 11606958), (61, 10465290), (62, 10296495), (66, 9672465), (90, 7093141), (93, 6864330), (99, 6448310), (110, 5803479), (121, 5275890), (122, 5232645), (155, 4118598), (165, 3868986), (183, 3488430), (186, 3432165), (198, 3224155), (242, 2637945), (279, 2288110), (305, 2093058), (310, 2059299), (330, 1934493), (341, 1872090), (363, 1758630), (366, 1744215), (465, 1372866), (495, 1289662), (549, 1162810), (558, 1144055), (605, 1055178), (610, 1046529), (671, 951390), (682, 936045), (726, 879315), (915, 697686), (930, 686433), (961, 664290), (990, 644831), (1023, 624030), (1089, 586210), (1098, 581405), (1210, 527589), (1342, 475695), (1395, 457622), (1705, 374418), (1815, 351726), (1830, 348843), (1891, 337590), (1922, 332145), (2013, 317130), (2046, 312015), (2178, 293105), (2745, 232562), (2790, 228811), (2883, 221430), (3069, 208010), (3355, 190278), (3410, 187209), (3630, 175863), (3751, 170190), (3782, 168795), (4026, 158565), (4805, 132858), (5115, 124806), (5445, 117242), (5490, 116281), (5673, 112530), (5766, 110715), (6039, 105710), (6138, 104005), (6710, 95139), (7381, 86490), (7502, 85095), (8649, 73810), (9455, 67518), (9610, 66429), (10065, 63426), (10230, 62403), (10571, 60390), (10890, 58621), (11253, 56730), (11346, 56265), (12078, 52855), (14415, 44286), (14762, 43245), (15345, 41602), (17019, 37510), (17298, 36905), (18755, 34038), (18910, 33759), (20130, 31713), (20801, 30690), (21142, 30195), (22143, 28830), (22506, 28365)]