7843420

素因数分解:

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

素因数の和:430

約数の個数: 48

約数和(自身を含む): 17978688

約数和(自身を除く): 10135268

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 97, 130, 194, 260, 311, 388, 485, 622, 970, 1244, 1261, 1555, 1940, 2522, 3110, 4043, 5044, 6220, 6305, 8086, 12610, 16172, 20215, 25220, 30167, 40430, 60334, 80860, 120668, 150835, 301670, 392171, 603340, 784342, 1568684, 1960855, 3921710, 7843420]

約数ペア:

[(1, 7843420), (2, 3921710), (4, 1960855), (5, 1568684), (10, 784342), (13, 603340), (20, 392171), (26, 301670), (52, 150835), (65, 120668), (97, 80860), (130, 60334), (194, 40430), (260, 30167), (311, 25220), (388, 20215), (485, 16172), (622, 12610), (970, 8086), (1244, 6305), (1261, 6220), (1555, 5044), (1940, 4043), (2522, 3110)]