389957240

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1\times {\mathrm{1609}}^1$

素因数の和:1776

約数の個数: 64

約数和(自身を含む): 900698400

約数和(自身を除く): 510741160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 83, 146, 166, 292, 332, 365, 415, 584, 664, 730, 830, 1460, 1609, 1660, 2920, 3218, 3320, 6059, 6436, 8045, 12118, 12872, 16090, 24236, 30295, 32180, 48472, 60590, 64360, 117457, 121180, 133547, 234914, 242360, 267094, 469828, 534188, 587285, 667735, 939656, 1068376, 1174570, 1335470, 2349140, 2670940, 4698280, 5341880, 9748931, 19497862, 38995724, 48744655, 77991448, 97489310, 194978620, 389957240]

約数ペア:

[(1, 389957240), (2, 194978620), (4, 97489310), (5, 77991448), (8, 48744655), (10, 38995724), (20, 19497862), (40, 9748931), (73, 5341880), (83, 4698280), (146, 2670940), (166, 2349140), (292, 1335470), (332, 1174570), (365, 1068376), (415, 939656), (584, 667735), (664, 587285), (730, 534188), (830, 469828), (1460, 267094), (1609, 242360), (1660, 234914), (2920, 133547), (3218, 121180), (3320, 117457), (6059, 64360), (6436, 60590), (8045, 48472), (12118, 32180), (12872, 30295), (16090, 24236)]