121212840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{1277}}^1$

素因数の和:1411

約数の個数: 128

約数和(自身を含む): 419592960

約数和(自身を除く): 298380120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 113, 120, 140, 168, 210, 226, 280, 339, 420, 452, 565, 678, 791, 840, 904, 1130, 1277, 1356, 1582, 1695, 2260, 2373, 2554, 2712, 3164, 3390, 3831, 3955, 4520, 4746, 5108, 6328, 6385, 6780, 7662, 7910, 8939, 9492, 10216, 11865, 12770, 13560, 15324, 15820, 17878, 18984, 19155, 23730, 25540, 26817, 30648, 31640, 35756, 38310, 44695, 47460, 51080, 53634, 71512, 76620, 89390, 94920, 107268, 134085, 144301, 153240, 178780, 214536, 268170, 288602, 357560, 432903, 536340, 577204, 721505, 865806, 1010107, 1072680, 1154408, 1443010, 1731612, 2020214, 2164515, 2886020, 3030321, 3463224, 4040428, 4329030, 5050535, 5772040, 6060642, 8080856, 8658060, 10101070, 12121284, 15151605, 17316120, 20202140, 24242568, 30303210, 40404280, 60606420, 121212840]

約数ペア:

[(1, 121212840), (2, 60606420), (3, 40404280), (4, 30303210), (5, 24242568), (6, 20202140), (7, 17316120), (8, 15151605), (10, 12121284), (12, 10101070), (14, 8658060), (15, 8080856), (20, 6060642), (21, 5772040), (24, 5050535), (28, 4329030), (30, 4040428), (35, 3463224), (40, 3030321), (42, 2886020), (56, 2164515), (60, 2020214), (70, 1731612), (84, 1443010), (105, 1154408), (113, 1072680), (120, 1010107), (140, 865806), (168, 721505), (210, 577204), (226, 536340), (280, 432903), (339, 357560), (420, 288602), (452, 268170), (565, 214536), (678, 178780), (791, 153240), (840, 144301), (904, 134085), (1130, 107268), (1277, 94920), (1356, 89390), (1582, 76620), (1695, 71512), (2260, 53634), (2373, 51080), (2554, 47460), (2712, 44695), (3164, 38310), (3390, 35756), (3831, 31640), (3955, 30648), (4520, 26817), (4746, 25540), (5108, 23730), (6328, 19155), (6385, 18984), (6780, 17878), (7662, 15820), (7910, 15324), (8939, 13560), (9492, 12770), (10216, 11865)]