2019571880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{691}}^1\times {\mathrm{2357}}^1$

素因数の和:3090

約数の個数: 64

約数和(自身を含む): 4699399680

約数和(自身を除く): 2679827800

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 691, 1240, 1382, 2357, 2764, 3455, 4714, 5528, 6910, 9428, 11785, 13820, 18856, 21421, 23570, 27640, 42842, 47140, 73067, 85684, 94280, 107105, 146134, 171368, 214210, 292268, 365335, 428420, 584536, 730670, 856840, 1461340, 1628687, 2922680, 3257374, 6514748, 8143435, 13029496, 16286870, 32573740, 50489297, 65147480, 100978594, 201957188, 252446485, 403914376, 504892970, 1009785940, 2019571880]

約数ペア:

[(1, 2019571880), (2, 1009785940), (4, 504892970), (5, 403914376), (8, 252446485), (10, 201957188), (20, 100978594), (31, 65147480), (40, 50489297), (62, 32573740), (124, 16286870), (155, 13029496), (248, 8143435), (310, 6514748), (620, 3257374), (691, 2922680), (1240, 1628687), (1382, 1461340), (2357, 856840), (2764, 730670), (3455, 584536), (4714, 428420), (5528, 365335), (6910, 292268), (9428, 214210), (11785, 171368), (13820, 146134), (18856, 107105), (21421, 94280), (23570, 85684), (27640, 73067), (42842, 47140)]