2007489940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{443}}^1\times {\mathrm{7309}}^1$

素因数の和:7792

約数の個数: 48

約数和(自身を含む): 4362140160

約数和(自身を除く): 2354650220

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 443, 620, 886, 1772, 2215, 4430, 7309, 8860, 13733, 14618, 27466, 29236, 36545, 54932, 68665, 73090, 137330, 146180, 226579, 274660, 453158, 906316, 1132895, 2265790, 3237887, 4531580, 6475774, 12951548, 16189435, 32378870, 64757740, 100374497, 200748994, 401497988, 501872485, 1003744970, 2007489940]

約数ペア:

[(1, 2007489940), (2, 1003744970), (4, 501872485), (5, 401497988), (10, 200748994), (20, 100374497), (31, 64757740), (62, 32378870), (124, 16189435), (155, 12951548), (310, 6475774), (443, 4531580), (620, 3237887), (886, 2265790), (1772, 1132895), (2215, 906316), (4430, 453158), (7309, 274660), (8860, 226579), (13733, 146180), (14618, 137330), (27466, 73090), (29236, 68665), (36545, 54932)]