77641970

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{193}}^1\times {\mathrm{821}}^1$

素因数の和:1035

約数の個数: 48

約数和(自身を含む): 163614168

約数和(自身を除く): 85972198

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 193, 245, 386, 490, 821, 965, 1351, 1642, 1930, 2702, 4105, 5747, 6755, 8210, 9457, 11494, 13510, 18914, 28735, 40229, 47285, 57470, 80458, 94570, 158453, 201145, 316906, 402290, 792265, 1109171, 1584530, 2218342, 5545855, 7764197, 11091710, 15528394, 38820985, 77641970]

約数ペア:

[(1, 77641970), (2, 38820985), (5, 15528394), (7, 11091710), (10, 7764197), (14, 5545855), (35, 2218342), (49, 1584530), (70, 1109171), (98, 792265), (193, 402290), (245, 316906), (386, 201145), (490, 158453), (821, 94570), (965, 80458), (1351, 57470), (1642, 47285), (1930, 40229), (2702, 28735), (4105, 18914), (5747, 13510), (6755, 11494), (8210, 9457)]