31465040

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1$

素因数の和:288

約数の個数: 80

約数和(自身を含む): 76776336

約数和(自身を除く): 45311296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 53, 80, 82, 106, 164, 181, 205, 212, 265, 328, 362, 410, 424, 530, 656, 724, 820, 848, 905, 1060, 1448, 1640, 1810, 2120, 2173, 2896, 3280, 3620, 4240, 4346, 7240, 7421, 8692, 9593, 10865, 14480, 14842, 17384, 19186, 21730, 29684, 34768, 37105, 38372, 43460, 47965, 59368, 74210, 76744, 86920, 95930, 118736, 148420, 153488, 173840, 191860, 296840, 383720, 393313, 593680, 767440, 786626, 1573252, 1966565, 3146504, 3933130, 6293008, 7866260, 15732520, 31465040]

約数ペア:

[(1, 31465040), (2, 15732520), (4, 7866260), (5, 6293008), (8, 3933130), (10, 3146504), (16, 1966565), (20, 1573252), (40, 786626), (41, 767440), (53, 593680), (80, 393313), (82, 383720), (106, 296840), (164, 191860), (181, 173840), (205, 153488), (212, 148420), (265, 118736), (328, 95930), (362, 86920), (410, 76744), (424, 74210), (530, 59368), (656, 47965), (724, 43460), (820, 38372), (848, 37105), (905, 34768), (1060, 29684), (1448, 21730), (1640, 19186), (1810, 17384), (2120, 14842), (2173, 14480), (2896, 10865), (3280, 9593), (3620, 8692), (4240, 7421), (4346, 7240)]