18204060

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{487}}^1$

素因数の和:595

約数の個数: 96

約数和(自身を含む): 59028480

約数和(自身を除く): 40824420

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 89, 105, 140, 178, 210, 267, 356, 420, 445, 487, 534, 623, 890, 974, 1068, 1246, 1335, 1461, 1780, 1869, 1948, 2435, 2492, 2670, 2922, 3115, 3409, 3738, 4870, 5340, 5844, 6230, 6818, 7305, 7476, 9345, 9740, 10227, 12460, 13636, 14610, 17045, 18690, 20454, 29220, 34090, 37380, 40908, 43343, 51135, 68180, 86686, 102270, 130029, 173372, 204540, 216715, 260058, 303401, 433430, 520116, 606802, 650145, 866860, 910203, 1213604, 1300290, 1517005, 1820406, 2600580, 3034010, 3640812, 4551015, 6068020, 9102030, 18204060]

約数ペア:

[(1, 18204060), (2, 9102030), (3, 6068020), (4, 4551015), (5, 3640812), (6, 3034010), (7, 2600580), (10, 1820406), (12, 1517005), (14, 1300290), (15, 1213604), (20, 910203), (21, 866860), (28, 650145), (30, 606802), (35, 520116), (42, 433430), (60, 303401), (70, 260058), (84, 216715), (89, 204540), (105, 173372), (140, 130029), (178, 102270), (210, 86686), (267, 68180), (356, 51135), (420, 43343), (445, 40908), (487, 37380), (534, 34090), (623, 29220), (890, 20454), (974, 18690), (1068, 17045), (1246, 14610), (1335, 13636), (1461, 12460), (1780, 10227), (1869, 9740), (1948, 9345), (2435, 7476), (2492, 7305), (2670, 6818), (2922, 6230), (3115, 5844), (3409, 5340), (3738, 4870)]