65640640

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{509}}^1$

素因数の和:570

約数の個数: 112

約数和(自身を含む): 174101760

約数和(自身を除く): 108461120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 130, 155, 160, 208, 248, 260, 310, 320, 403, 416, 496, 509, 520, 620, 806, 832, 992, 1018, 1040, 1240, 1612, 1984, 2015, 2036, 2080, 2480, 2545, 3224, 4030, 4072, 4160, 4960, 5090, 6448, 6617, 8060, 8144, 9920, 10180, 12896, 13234, 15779, 16120, 16288, 20360, 25792, 26468, 31558, 32240, 32576, 33085, 40720, 52936, 63116, 64480, 66170, 78895, 81440, 105872, 126232, 128960, 132340, 157790, 162880, 205127, 211744, 252464, 264680, 315580, 410254, 423488, 504928, 529360, 631160, 820508, 1009856, 1025635, 1058720, 1262320, 1641016, 2051270, 2117440, 2524640, 3282032, 4102540, 5049280, 6564064, 8205080, 13128128, 16410160, 32820320, 65640640]

約数ペア:

[(1, 65640640), (2, 32820320), (4, 16410160), (5, 13128128), (8, 8205080), (10, 6564064), (13, 5049280), (16, 4102540), (20, 3282032), (26, 2524640), (31, 2117440), (32, 2051270), (40, 1641016), (52, 1262320), (62, 1058720), (64, 1025635), (65, 1009856), (80, 820508), (104, 631160), (124, 529360), (130, 504928), (155, 423488), (160, 410254), (208, 315580), (248, 264680), (260, 252464), (310, 211744), (320, 205127), (403, 162880), (416, 157790), (496, 132340), (509, 128960), (520, 126232), (620, 105872), (806, 81440), (832, 78895), (992, 66170), (1018, 64480), (1040, 63116), (1240, 52936), (1612, 40720), (1984, 33085), (2015, 32576), (2036, 32240), (2080, 31558), (2480, 26468), (2545, 25792), (3224, 20360), (4030, 16288), (4072, 16120), (4160, 15779), (4960, 13234), (5090, 12896), (6448, 10180), (6617, 9920), (8060, 8144)]