20865720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4241}}^1$

素因数の和:4296

約数の個数: 64

約数和(自身を含む): 64139040

約数和(自身を除く): 43273320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 41, 60, 82, 120, 123, 164, 205, 246, 328, 410, 492, 615, 820, 984, 1230, 1640, 2460, 4241, 4920, 8482, 12723, 16964, 21205, 25446, 33928, 42410, 50892, 63615, 84820, 101784, 127230, 169640, 173881, 254460, 347762, 508920, 521643, 695524, 869405, 1043286, 1391048, 1738810, 2086572, 2608215, 3477620, 4173144, 5216430, 6955240, 10432860, 20865720]

約数ペア:

[(1, 20865720), (2, 10432860), (3, 6955240), (4, 5216430), (5, 4173144), (6, 3477620), (8, 2608215), (10, 2086572), (12, 1738810), (15, 1391048), (20, 1043286), (24, 869405), (30, 695524), (40, 521643), (41, 508920), (60, 347762), (82, 254460), (120, 173881), (123, 169640), (164, 127230), (205, 101784), (246, 84820), (328, 63615), (410, 50892), (492, 42410), (615, 33928), (820, 25446), (984, 21205), (1230, 16964), (1640, 12723), (2460, 8482), (4241, 4920)]