664390020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{225983}}^1$

素因数の和:226009

約数の個数: 72

約数和(自身を含む): 2164022784

約数和(自身を除く): 1499632764

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 225983, 451966, 677949, 903932, 1129915, 1355898, 1581881, 2259830, 2711796, 3163762, 3389745, 4519660, 4745643, 6327524, 6779490, 7909405, 9491286, 11073167, 13558980, 15818810, 18982572, 22146334, 23728215, 31637620, 33219501, 44292668, 47456430, 55365835, 66439002, 94912860, 110731670, 132878004, 166097505, 221463340, 332195010, 664390020]

約数ペア:

[(1, 664390020), (2, 332195010), (3, 221463340), (4, 166097505), (5, 132878004), (6, 110731670), (7, 94912860), (10, 66439002), (12, 55365835), (14, 47456430), (15, 44292668), (20, 33219501), (21, 31637620), (28, 23728215), (30, 22146334), (35, 18982572), (42, 15818810), (49, 13558980), (60, 11073167), (70, 9491286), (84, 7909405), (98, 6779490), (105, 6327524), (140, 4745643), (147, 4519660), (196, 3389745), (210, 3163762), (245, 2711796), (294, 2259830), (420, 1581881), (490, 1355898), (588, 1129915), (735, 903932), (980, 677949), (1470, 451966), (2940, 225983)]