1778920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1$

素因数の和:346

約数の個数: 64

約数和(自身を含む): 4717440

約数和(自身を除く): 2938520

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, 311, 440, 520, 572, 622, 715, 1144, 1244, 1430, 1555, 2488, 2860, 3110, 3421, 4043, 5720, 6220, 6842, 8086, 12440, 13684, 16172, 17105, 20215, 27368, 32344, 34210, 40430, 44473, 68420, 80860, 88946, 136840, 161720, 177892, 222365, 355784, 444730, 889460, 1778920]

約数ペア:

[(1, 1778920), (2, 889460), (4, 444730), (5, 355784), (8, 222365), (10, 177892), (11, 161720), (13, 136840), (20, 88946), (22, 80860), (26, 68420), (40, 44473), (44, 40430), (52, 34210), (55, 32344), (65, 27368), (88, 20215), (104, 17105), (110, 16172), (130, 13684), (143, 12440), (220, 8086), (260, 6842), (286, 6220), (311, 5720), (440, 4043), (520, 3421), (572, 3110), (622, 2860), (715, 2488), (1144, 1555), (1244, 1430)]