15686840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{311}}^1$

素因数の和:432

約数の個数: 64

約数和(自身を含む): 38525760

約数和(自身を除く): 22838920

約数列:

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

約数ペア:

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