20210680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1$

素因数の和:197

約数の個数: 128

約数和(自身を含む): 57024000

約数和(自身を除く): 36813320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 29, 35, 38, 40, 56, 58, 70, 76, 95, 116, 131, 133, 140, 145, 152, 190, 203, 232, 262, 266, 280, 290, 380, 406, 524, 532, 551, 580, 655, 665, 760, 812, 917, 1015, 1048, 1064, 1102, 1160, 1310, 1330, 1624, 1834, 2030, 2204, 2489, 2620, 2660, 2755, 3668, 3799, 3857, 4060, 4408, 4585, 4978, 5240, 5320, 5510, 7336, 7598, 7714, 8120, 9170, 9956, 11020, 12445, 15196, 15428, 17423, 18340, 18995, 19285, 19912, 22040, 24890, 26593, 30392, 30856, 34846, 36680, 37990, 38570, 49780, 53186, 69692, 72181, 75980, 77140, 87115, 99560, 106372, 132965, 139384, 144362, 151960, 154280, 174230, 212744, 265930, 288724, 348460, 360905, 505267, 531860, 577448, 696920, 721810, 1010534, 1063720, 1443620, 2021068, 2526335, 2887240, 4042136, 5052670, 10105340, 20210680]

約数ペア:

[(1, 20210680), (2, 10105340), (4, 5052670), (5, 4042136), (7, 2887240), (8, 2526335), (10, 2021068), (14, 1443620), (19, 1063720), (20, 1010534), (28, 721810), (29, 696920), (35, 577448), (38, 531860), (40, 505267), (56, 360905), (58, 348460), (70, 288724), (76, 265930), (95, 212744), (116, 174230), (131, 154280), (133, 151960), (140, 144362), (145, 139384), (152, 132965), (190, 106372), (203, 99560), (232, 87115), (262, 77140), (266, 75980), (280, 72181), (290, 69692), (380, 53186), (406, 49780), (524, 38570), (532, 37990), (551, 36680), (580, 34846), (655, 30856), (665, 30392), (760, 26593), (812, 24890), (917, 22040), (1015, 19912), (1048, 19285), (1064, 18995), (1102, 18340), (1160, 17423), (1310, 15428), (1330, 15196), (1624, 12445), (1834, 11020), (2030, 9956), (2204, 9170), (2489, 8120), (2620, 7714), (2660, 7598), (2755, 7336), (3668, 5510), (3799, 5320), (3857, 5240), (4060, 4978), (4408, 4585)]