64480

素因数分解:

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

素因数の和:59

約数の個数: 48

約数和(自身を含む): 169344

約数和(自身を除く): 104864

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, 496, 520, 620, 806, 992, 1040, 1240, 1612, 2015, 2080, 2480, 3224, 4030, 4960, 6448, 8060, 12896, 16120, 32240, 64480]

約数ペア:

[(1, 64480), (2, 32240), (4, 16120), (5, 12896), (8, 8060), (10, 6448), (13, 4960), (16, 4030), (20, 3224), (26, 2480), (31, 2080), (32, 2015), (40, 1612), (52, 1240), (62, 1040), (65, 992), (80, 806), (104, 620), (124, 520), (130, 496), (155, 416), (160, 403), (208, 310), (248, 260)]