31373680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{311}}^1$

素因数の和:434

約数の個数: 80

約数和(自身を含む): 79619904

約数和(自身を除く): 48246224

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 97, 104, 130, 194, 208, 260, 311, 388, 485, 520, 622, 776, 970, 1040, 1244, 1261, 1552, 1555, 1940, 2488, 2522, 3110, 3880, 4043, 4976, 5044, 6220, 6305, 7760, 8086, 10088, 12440, 12610, 16172, 20176, 20215, 24880, 25220, 30167, 32344, 40430, 50440, 60334, 64688, 80860, 100880, 120668, 150835, 161720, 241336, 301670, 323440, 392171, 482672, 603340, 784342, 1206680, 1568684, 1960855, 2413360, 3137368, 3921710, 6274736, 7843420, 15686840, 31373680]

約数ペア:

[(1, 31373680), (2, 15686840), (4, 7843420), (5, 6274736), (8, 3921710), (10, 3137368), (13, 2413360), (16, 1960855), (20, 1568684), (26, 1206680), (40, 784342), (52, 603340), (65, 482672), (80, 392171), (97, 323440), (104, 301670), (130, 241336), (194, 161720), (208, 150835), (260, 120668), (311, 100880), (388, 80860), (485, 64688), (520, 60334), (622, 50440), (776, 40430), (970, 32344), (1040, 30167), (1244, 25220), (1261, 24880), (1552, 20215), (1555, 20176), (1940, 16172), (2488, 12610), (2522, 12440), (3110, 10088), (3880, 8086), (4043, 7760), (4976, 6305), (5044, 6220)]