30810520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{307}}^1$

素因数の和:524

約数の個数: 64

約数和(自身を含む): 75287520

約数和(自身を除く): 44477000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 193, 260, 307, 386, 520, 614, 772, 965, 1228, 1535, 1544, 1930, 2456, 2509, 3070, 3860, 3991, 5018, 6140, 7720, 7982, 10036, 12280, 12545, 15964, 19955, 20072, 25090, 31928, 39910, 50180, 59251, 79820, 100360, 118502, 159640, 237004, 296255, 474008, 592510, 770263, 1185020, 1540526, 2370040, 3081052, 3851315, 6162104, 7702630, 15405260, 30810520]

約数ペア:

[(1, 30810520), (2, 15405260), (4, 7702630), (5, 6162104), (8, 3851315), (10, 3081052), (13, 2370040), (20, 1540526), (26, 1185020), (40, 770263), (52, 592510), (65, 474008), (104, 296255), (130, 237004), (193, 159640), (260, 118502), (307, 100360), (386, 79820), (520, 59251), (614, 50180), (772, 39910), (965, 31928), (1228, 25090), (1535, 20072), (1544, 19955), (1930, 15964), (2456, 12545), (2509, 12280), (3070, 10036), (3860, 7982), (3991, 7720), (5018, 6140)]