91811420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{787}}^1$

素因数の和:1122

約数の個数: 48

約数和(自身を含む): 203871360

約数和(自身を除く): 112059940

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 307, 380, 614, 787, 1228, 1535, 1574, 3070, 3148, 3935, 5833, 6140, 7870, 11666, 14953, 15740, 23332, 29165, 29906, 58330, 59812, 74765, 116660, 149530, 241609, 299060, 483218, 966436, 1208045, 2416090, 4590571, 4832180, 9181142, 18362284, 22952855, 45905710, 91811420]

約数ペア:

[(1, 91811420), (2, 45905710), (4, 22952855), (5, 18362284), (10, 9181142), (19, 4832180), (20, 4590571), (38, 2416090), (76, 1208045), (95, 966436), (190, 483218), (307, 299060), (380, 241609), (614, 149530), (787, 116660), (1228, 74765), (1535, 59812), (1574, 58330), (3070, 29906), (3148, 29165), (3935, 23332), (5833, 15740), (6140, 14953), (7870, 11666)]