211726840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{557}}^1$

素因数の和:641

約数の個数: 128

約数和(自身を含む): 556839360

約数和(自身を除く): 345112520

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 43, 52, 65, 68, 85, 86, 104, 130, 136, 170, 172, 215, 221, 260, 340, 344, 430, 442, 520, 557, 559, 680, 731, 860, 884, 1105, 1114, 1118, 1462, 1720, 1768, 2210, 2228, 2236, 2785, 2795, 2924, 3655, 4420, 4456, 4472, 5570, 5590, 5848, 7241, 7310, 8840, 9469, 9503, 11140, 11180, 14482, 14620, 18938, 19006, 22280, 22360, 23951, 28964, 29240, 36205, 37876, 38012, 47345, 47515, 47902, 57928, 72410, 75752, 76024, 94690, 95030, 95804, 119755, 123097, 144820, 189380, 190060, 191608, 239510, 246194, 289640, 311363, 378760, 380120, 407167, 479020, 492388, 615485, 622726, 814334, 958040, 984776, 1230970, 1245452, 1556815, 1628668, 2035835, 2461940, 2490904, 3113630, 3257336, 4071670, 4923880, 5293171, 6227260, 8143340, 10586342, 12454520, 16286680, 21172684, 26465855, 42345368, 52931710, 105863420, 211726840]

約数ペア:

[(1, 211726840), (2, 105863420), (4, 52931710), (5, 42345368), (8, 26465855), (10, 21172684), (13, 16286680), (17, 12454520), (20, 10586342), (26, 8143340), (34, 6227260), (40, 5293171), (43, 4923880), (52, 4071670), (65, 3257336), (68, 3113630), (85, 2490904), (86, 2461940), (104, 2035835), (130, 1628668), (136, 1556815), (170, 1245452), (172, 1230970), (215, 984776), (221, 958040), (260, 814334), (340, 622726), (344, 615485), (430, 492388), (442, 479020), (520, 407167), (557, 380120), (559, 378760), (680, 311363), (731, 289640), (860, 246194), (884, 239510), (1105, 191608), (1114, 190060), (1118, 189380), (1462, 144820), (1720, 123097), (1768, 119755), (2210, 95804), (2228, 95030), (2236, 94690), (2785, 76024), (2795, 75752), (2924, 72410), (3655, 57928), (4420, 47902), (4456, 47515), (4472, 47345), (5570, 38012), (5590, 37876), (5848, 36205), (7241, 29240), (7310, 28964), (8840, 23951), (9469, 22360), (9503, 22280), (11140, 19006), (11180, 18938), (14482, 14620)]