18474140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{359}}^1$

素因数の和:482

約数の個数: 48

約数和(自身を含む): 40642560

約数和(自身を除く): 22168420

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 83, 124, 155, 166, 310, 332, 359, 415, 620, 718, 830, 1436, 1660, 1795, 2573, 3590, 5146, 7180, 10292, 11129, 12865, 22258, 25730, 29797, 44516, 51460, 55645, 59594, 111290, 119188, 148985, 222580, 297970, 595940, 923707, 1847414, 3694828, 4618535, 9237070, 18474140]

約数ペア:

[(1, 18474140), (2, 9237070), (4, 4618535), (5, 3694828), (10, 1847414), (20, 923707), (31, 595940), (62, 297970), (83, 222580), (124, 148985), (155, 119188), (166, 111290), (310, 59594), (332, 55645), (359, 51460), (415, 44516), (620, 29797), (718, 25730), (830, 22258), (1436, 12865), (1660, 11129), (1795, 10292), (2573, 7180), (3590, 5146)]