1688440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1$

素因数の和:232

約数の個数: 64

約数和(自身を含む): 4354560

約数和(自身を除く): 2666120

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 191, 221, 260, 340, 382, 442, 520, 680, 764, 884, 955, 1105, 1528, 1768, 1910, 2210, 2483, 3247, 3820, 4420, 4966, 6494, 7640, 8840, 9932, 12415, 12988, 16235, 19864, 24830, 25976, 32470, 42211, 49660, 64940, 84422, 99320, 129880, 168844, 211055, 337688, 422110, 844220, 1688440]

約数ペア:

[(1, 1688440), (2, 844220), (4, 422110), (5, 337688), (8, 211055), (10, 168844), (13, 129880), (17, 99320), (20, 84422), (26, 64940), (34, 49660), (40, 42211), (52, 32470), (65, 25976), (68, 24830), (85, 19864), (104, 16235), (130, 12988), (136, 12415), (170, 9932), (191, 8840), (221, 7640), (260, 6494), (340, 4966), (382, 4420), (442, 3820), (520, 3247), (680, 2483), (764, 2210), (884, 1910), (955, 1768), (1105, 1528)]