20792487940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1668739}}^1$

素因数の和:1668844

約数の個数: 48

約数和(自身を含む): 50462697600

約数和(自身を除く): 29670209660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 178, 356, 445, 623, 890, 1246, 1780, 2492, 3115, 6230, 12460, 1668739, 3337478, 6674956, 8343695, 11681173, 16687390, 23362346, 33374780, 46724692, 58405865, 116811730, 148517771, 233623460, 297035542, 594071084, 742588855, 1039624397, 1485177710, 2079248794, 2970355420, 4158497588, 5198121985, 10396243970, 20792487940]

約数ペア:

[(1, 20792487940), (2, 10396243970), (4, 5198121985), (5, 4158497588), (7, 2970355420), (10, 2079248794), (14, 1485177710), (20, 1039624397), (28, 742588855), (35, 594071084), (70, 297035542), (89, 233623460), (140, 148517771), (178, 116811730), (356, 58405865), (445, 46724692), (623, 33374780), (890, 23362346), (1246, 16687390), (1780, 11681173), (2492, 8343695), (3115, 6674956), (6230, 3337478), (12460, 1668739)]