1297942720

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{130841}}^1$

素因数の和:130889

約数の個数: 56

約数和(自身を含む): 3190451328

約数和(自身を除く): 1892508608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960, 9920, 130841, 261682, 523364, 654205, 1046728, 1308410, 2093456, 2616820, 4056071, 4186912, 5233640, 8112142, 8373824, 10467280, 16224284, 20280355, 20934560, 32448568, 40560710, 41869120, 64897136, 81121420, 129794272, 162242840, 259588544, 324485680, 648971360, 1297942720]

約数ペア:

[(1, 1297942720), (2, 648971360), (4, 324485680), (5, 259588544), (8, 162242840), (10, 129794272), (16, 81121420), (20, 64897136), (31, 41869120), (32, 40560710), (40, 32448568), (62, 20934560), (64, 20280355), (80, 16224284), (124, 10467280), (155, 8373824), (160, 8112142), (248, 5233640), (310, 4186912), (320, 4056071), (496, 2616820), (620, 2093456), (992, 1308410), (1240, 1046728), (1984, 654205), (2480, 523364), (4960, 261682), (9920, 130841)]