80460040

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{691}}^1$

素因数の和:814

約数の個数: 64

約数和(自身を含む): 188334720

約数和(自身を除く): 107874680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 71, 82, 142, 164, 205, 284, 328, 355, 410, 568, 691, 710, 820, 1382, 1420, 1640, 2764, 2840, 2911, 3455, 5528, 5822, 6910, 11644, 13820, 14555, 23288, 27640, 28331, 29110, 49061, 56662, 58220, 98122, 113324, 116440, 141655, 196244, 226648, 245305, 283310, 392488, 490610, 566620, 981220, 1133240, 1962440, 2011501, 4023002, 8046004, 10057505, 16092008, 20115010, 40230020, 80460040]

約数ペア:

[(1, 80460040), (2, 40230020), (4, 20115010), (5, 16092008), (8, 10057505), (10, 8046004), (20, 4023002), (40, 2011501), (41, 1962440), (71, 1133240), (82, 981220), (142, 566620), (164, 490610), (205, 392488), (284, 283310), (328, 245305), (355, 226648), (410, 196244), (568, 141655), (691, 116440), (710, 113324), (820, 98122), (1382, 58220), (1420, 56662), (1640, 49061), (2764, 29110), (2840, 28331), (2911, 27640), (3455, 23288), (5528, 14555), (5822, 13820), (6910, 11644)]