18900390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20323}}^1$

素因数の和:20364

約数の個数: 32

約数和(自身を含む): 46826496

約数和(自身を除く): 27926106

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 93, 155, 186, 310, 465, 930, 20323, 40646, 60969, 101615, 121938, 203230, 304845, 609690, 630013, 1260026, 1890039, 3150065, 3780078, 6300130, 9450195, 18900390]

約数ペア:

[(1, 18900390), (2, 9450195), (3, 6300130), (5, 3780078), (6, 3150065), (10, 1890039), (15, 1260026), (30, 630013), (31, 609690), (62, 304845), (93, 203230), (155, 121938), (186, 101615), (310, 60969), (465, 40646), (930, 20323)]