265673720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{16481}}^1$

素因数の和:16536

約数の個数: 64

約数和(自身を含む): 664554240

約数和(自身を除く): 398880520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 8060, 16120, 16481, 32962, 65924, 82405, 131848, 164810, 214253, 329620, 428506, 510911, 659240, 857012, 1021822, 1071265, 1714024, 2043644, 2142530, 2554555, 4087288, 4285060, 5109110, 6641843, 8570120, 10218220, 13283686, 20436440, 26567372, 33209215, 53134744, 66418430, 132836860, 265673720]

約数ペア:

[(1, 265673720), (2, 132836860), (4, 66418430), (5, 53134744), (8, 33209215), (10, 26567372), (13, 20436440), (20, 13283686), (26, 10218220), (31, 8570120), (40, 6641843), (52, 5109110), (62, 4285060), (65, 4087288), (104, 2554555), (124, 2142530), (130, 2043644), (155, 1714024), (248, 1071265), (260, 1021822), (310, 857012), (403, 659240), (520, 510911), (620, 428506), (806, 329620), (1240, 214253), (1612, 164810), (2015, 131848), (3224, 82405), (4030, 65924), (8060, 32962), (16120, 16481)]