13468880

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5431}}^1$

素因数の和:5475

約数の個数: 40

約数和(自身を含む): 32331264

約数和(自身を除く): 18862384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 5431, 10862, 21724, 27155, 43448, 54310, 86896, 108620, 168361, 217240, 336722, 434480, 673444, 841805, 1346888, 1683610, 2693776, 3367220, 6734440, 13468880]

約数ペア:

[(1, 13468880), (2, 6734440), (4, 3367220), (5, 2693776), (8, 1683610), (10, 1346888), (16, 841805), (20, 673444), (31, 434480), (40, 336722), (62, 217240), (80, 168361), (124, 108620), (155, 86896), (248, 54310), (310, 43448), (496, 27155), (620, 21724), (1240, 10862), (2480, 5431)]