11279920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:254

約数の個数: 80

約数和(自身を含む): 28435680

約数和(自身を除く): 17155760

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 41, 76, 80, 82, 95, 152, 164, 181, 190, 205, 304, 328, 362, 380, 410, 656, 724, 760, 779, 820, 905, 1448, 1520, 1558, 1640, 1810, 2896, 3116, 3280, 3439, 3620, 3895, 6232, 6878, 7240, 7421, 7790, 12464, 13756, 14480, 14842, 15580, 17195, 27512, 29684, 31160, 34390, 37105, 55024, 59368, 62320, 68780, 74210, 118736, 137560, 140999, 148420, 275120, 281998, 296840, 563996, 593680, 704995, 1127992, 1409990, 2255984, 2819980, 5639960, 11279920]

約数ペア:

[(1, 11279920), (2, 5639960), (4, 2819980), (5, 2255984), (8, 1409990), (10, 1127992), (16, 704995), (19, 593680), (20, 563996), (38, 296840), (40, 281998), (41, 275120), (76, 148420), (80, 140999), (82, 137560), (95, 118736), (152, 74210), (164, 68780), (181, 62320), (190, 59368), (205, 55024), (304, 37105), (328, 34390), (362, 31160), (380, 29684), (410, 27512), (656, 17195), (724, 15580), (760, 14842), (779, 14480), (820, 13756), (905, 12464), (1448, 7790), (1520, 7421), (1558, 7240), (1640, 6878), (1810, 6232), (2896, 3895), (3116, 3620), (3280, 3439)]