28031120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{26953}}^1$

素因数の和:26979

約数の個数: 40

約数和(自身を含む): 70188216

約数和(自身を除く): 42157096

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 26953, 53906, 107812, 134765, 215624, 269530, 350389, 431248, 539060, 700778, 1078120, 1401556, 1751945, 2156240, 2803112, 3503890, 5606224, 7007780, 14015560, 28031120]

約数ペア:

[(1, 28031120), (2, 14015560), (4, 7007780), (5, 5606224), (8, 3503890), (10, 2803112), (13, 2156240), (16, 1751945), (20, 1401556), (26, 1078120), (40, 700778), (52, 539060), (65, 431248), (80, 350389), (104, 269530), (130, 215624), (208, 134765), (260, 107812), (520, 53906), (1040, 26953)]