20185120

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:254

約数の個数: 96

約数和(自身を含む): 52009776

約数和(自身を除く): 31824656

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 41, 68, 80, 82, 85, 136, 160, 164, 170, 181, 205, 272, 328, 340, 362, 410, 544, 656, 680, 697, 724, 820, 905, 1312, 1360, 1394, 1448, 1640, 1810, 2720, 2788, 2896, 3077, 3280, 3485, 3620, 5576, 5792, 6154, 6560, 6970, 7240, 7421, 11152, 12308, 13940, 14480, 14842, 15385, 22304, 24616, 27880, 28960, 29684, 30770, 37105, 49232, 55760, 59368, 61540, 74210, 98464, 111520, 118736, 123080, 126157, 148420, 237472, 246160, 252314, 296840, 492320, 504628, 593680, 630785, 1009256, 1187360, 1261570, 2018512, 2523140, 4037024, 5046280, 10092560, 20185120]

約数ペア:

[(1, 20185120), (2, 10092560), (4, 5046280), (5, 4037024), (8, 2523140), (10, 2018512), (16, 1261570), (17, 1187360), (20, 1009256), (32, 630785), (34, 593680), (40, 504628), (41, 492320), (68, 296840), (80, 252314), (82, 246160), (85, 237472), (136, 148420), (160, 126157), (164, 123080), (170, 118736), (181, 111520), (205, 98464), (272, 74210), (328, 61540), (340, 59368), (362, 55760), (410, 49232), (544, 37105), (656, 30770), (680, 29684), (697, 28960), (724, 27880), (820, 24616), (905, 22304), (1312, 15385), (1360, 14842), (1394, 14480), (1448, 13940), (1640, 12308), (1810, 11152), (2720, 7421), (2788, 7240), (2896, 6970), (3077, 6560), (3280, 6154), (3485, 5792), (3620, 5576)]