64666840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:233

約数の個数: 128

約数和(自身を含む): 175633920

約数和(自身を除く): 110967080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 41, 43, 56, 70, 82, 86, 131, 140, 164, 172, 205, 215, 262, 280, 287, 301, 328, 344, 410, 430, 524, 574, 602, 655, 820, 860, 917, 1048, 1148, 1204, 1310, 1435, 1505, 1640, 1720, 1763, 1834, 2296, 2408, 2620, 2870, 3010, 3526, 3668, 4585, 5240, 5371, 5633, 5740, 6020, 7052, 7336, 8815, 9170, 10742, 11266, 11480, 12040, 12341, 14104, 17630, 18340, 21484, 22532, 24682, 26855, 28165, 35260, 36680, 37597, 39431, 42968, 45064, 49364, 53710, 56330, 61705, 70520, 75194, 78862, 98728, 107420, 112660, 123410, 150388, 157724, 187985, 197155, 214840, 225320, 230953, 246820, 300776, 315448, 375970, 394310, 461906, 493640, 751940, 788620, 923812, 1154765, 1503880, 1577240, 1616671, 1847624, 2309530, 3233342, 4619060, 6466684, 8083355, 9238120, 12933368, 16166710, 32333420, 64666840]

約数ペア:

[(1, 64666840), (2, 32333420), (4, 16166710), (5, 12933368), (7, 9238120), (8, 8083355), (10, 6466684), (14, 4619060), (20, 3233342), (28, 2309530), (35, 1847624), (40, 1616671), (41, 1577240), (43, 1503880), (56, 1154765), (70, 923812), (82, 788620), (86, 751940), (131, 493640), (140, 461906), (164, 394310), (172, 375970), (205, 315448), (215, 300776), (262, 246820), (280, 230953), (287, 225320), (301, 214840), (328, 197155), (344, 187985), (410, 157724), (430, 150388), (524, 123410), (574, 112660), (602, 107420), (655, 98728), (820, 78862), (860, 75194), (917, 70520), (1048, 61705), (1148, 56330), (1204, 53710), (1310, 49364), (1435, 45064), (1505, 42968), (1640, 39431), (1720, 37597), (1763, 36680), (1834, 35260), (2296, 28165), (2408, 26855), (2620, 24682), (2870, 22532), (3010, 21484), (3526, 18340), (3668, 17630), (4585, 14104), (5240, 12341), (5371, 12040), (5633, 11480), (5740, 11266), (6020, 10742), (7052, 9170), (7336, 8815)]