28564640

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{443}}^1$

素因数の和:502

約数の個数: 96

約数和(自身を含む): 75188736

約数和(自身を除く): 46624096

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 65, 80, 104, 124, 130, 155, 160, 208, 248, 260, 310, 403, 416, 443, 496, 520, 620, 806, 886, 992, 1040, 1240, 1612, 1772, 2015, 2080, 2215, 2480, 3224, 3544, 4030, 4430, 4960, 5759, 6448, 7088, 8060, 8860, 11518, 12896, 13733, 14176, 16120, 17720, 23036, 27466, 28795, 32240, 35440, 46072, 54932, 57590, 64480, 68665, 70880, 92144, 109864, 115180, 137330, 178529, 184288, 219728, 230360, 274660, 357058, 439456, 460720, 549320, 714116, 892645, 921440, 1098640, 1428232, 1785290, 2197280, 2856464, 3570580, 5712928, 7141160, 14282320, 28564640]

約数ペア:

[(1, 28564640), (2, 14282320), (4, 7141160), (5, 5712928), (8, 3570580), (10, 2856464), (13, 2197280), (16, 1785290), (20, 1428232), (26, 1098640), (31, 921440), (32, 892645), (40, 714116), (52, 549320), (62, 460720), (65, 439456), (80, 357058), (104, 274660), (124, 230360), (130, 219728), (155, 184288), (160, 178529), (208, 137330), (248, 115180), (260, 109864), (310, 92144), (403, 70880), (416, 68665), (443, 64480), (496, 57590), (520, 54932), (620, 46072), (806, 35440), (886, 32240), (992, 28795), (1040, 27466), (1240, 23036), (1612, 17720), (1772, 16120), (2015, 14176), (2080, 13733), (2215, 12896), (2480, 11518), (3224, 8860), (3544, 8060), (4030, 7088), (4430, 6448), (4960, 5759)]