71980040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{9623}}^1$

素因数の和:9662

約数の個数: 64

約数和(自身を含む): 187090560

約数和(自身を除く): 115110520

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 136, 170, 187, 220, 340, 374, 440, 680, 748, 935, 1496, 1870, 3740, 7480, 9623, 19246, 38492, 48115, 76984, 96230, 105853, 163591, 192460, 211706, 327182, 384920, 423412, 529265, 654364, 817955, 846824, 1058530, 1308728, 1635910, 1799501, 2117060, 3271820, 3599002, 4234120, 6543640, 7198004, 8997505, 14396008, 17995010, 35990020, 71980040]

約数ペア:

[(1, 71980040), (2, 35990020), (4, 17995010), (5, 14396008), (8, 8997505), (10, 7198004), (11, 6543640), (17, 4234120), (20, 3599002), (22, 3271820), (34, 2117060), (40, 1799501), (44, 1635910), (55, 1308728), (68, 1058530), (85, 846824), (88, 817955), (110, 654364), (136, 529265), (170, 423412), (187, 384920), (220, 327182), (340, 211706), (374, 192460), (440, 163591), (680, 105853), (748, 96230), (935, 76984), (1496, 48115), (1870, 38492), (3740, 19246), (7480, 9623)]