18595720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3251}}^1$

素因数の和:3286

約数の個数: 64

約数和(自身を含む): 49170240

約数和(自身を除く): 30574520

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 260, 286, 440, 520, 572, 715, 1144, 1430, 2860, 3251, 5720, 6502, 13004, 16255, 26008, 32510, 35761, 42263, 65020, 71522, 84526, 130040, 143044, 169052, 178805, 211315, 286088, 338104, 357610, 422630, 464893, 715220, 845260, 929786, 1430440, 1690520, 1859572, 2324465, 3719144, 4648930, 9297860, 18595720]

約数ペア:

[(1, 18595720), (2, 9297860), (4, 4648930), (5, 3719144), (8, 2324465), (10, 1859572), (11, 1690520), (13, 1430440), (20, 929786), (22, 845260), (26, 715220), (40, 464893), (44, 422630), (52, 357610), (55, 338104), (65, 286088), (88, 211315), (104, 178805), (110, 169052), (130, 143044), (143, 130040), (220, 84526), (260, 71522), (286, 65020), (440, 42263), (520, 35761), (572, 32510), (715, 26008), (1144, 16255), (1430, 13004), (2860, 6502), (3251, 5720)]