977883940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{49943}}^1$

素因数の和:50052

約数の個数: 48

約数和(自身を含む): 2265459840

約数和(自身を除く): 1287575900

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 178, 220, 356, 445, 890, 979, 1780, 1958, 3916, 4895, 9790, 19580, 49943, 99886, 199772, 249715, 499430, 549373, 998860, 1098746, 2197492, 2746865, 4444927, 5493730, 8889854, 10987460, 17779708, 22224635, 44449270, 48894197, 88898540, 97788394, 195576788, 244470985, 488941970, 977883940]

約数ペア:

[(1, 977883940), (2, 488941970), (4, 244470985), (5, 195576788), (10, 97788394), (11, 88898540), (20, 48894197), (22, 44449270), (44, 22224635), (55, 17779708), (89, 10987460), (110, 8889854), (178, 5493730), (220, 4444927), (356, 2746865), (445, 2197492), (890, 1098746), (979, 998860), (1780, 549373), (1958, 499430), (3916, 249715), (4895, 199772), (9790, 99886), (19580, 49943)]