215653360

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6689}}^1$

素因数の和:6746

約数の個数: 80

約数和(自身を含む): 557464320

約数和(自身を除く): 341810960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 3224, 4030, 6448, 6689, 8060, 13378, 16120, 26756, 32240, 33445, 53512, 66890, 86957, 107024, 133780, 173914, 207359, 267560, 347828, 414718, 434785, 535120, 695656, 829436, 869570, 1036795, 1391312, 1658872, 1739140, 2073590, 2695667, 3317744, 3478280, 4147180, 5391334, 6956560, 8294360, 10782668, 13478335, 16588720, 21565336, 26956670, 43130672, 53913340, 107826680, 215653360]

約数ペア:

[(1, 215653360), (2, 107826680), (4, 53913340), (5, 43130672), (8, 26956670), (10, 21565336), (13, 16588720), (16, 13478335), (20, 10782668), (26, 8294360), (31, 6956560), (40, 5391334), (52, 4147180), (62, 3478280), (65, 3317744), (80, 2695667), (104, 2073590), (124, 1739140), (130, 1658872), (155, 1391312), (208, 1036795), (248, 869570), (260, 829436), (310, 695656), (403, 535120), (496, 434785), (520, 414718), (620, 347828), (806, 267560), (1040, 207359), (1240, 173914), (1612, 133780), (2015, 107024), (2480, 86957), (3224, 66890), (4030, 53512), (6448, 33445), (6689, 32240), (8060, 26756), (13378, 16120)]