778996816

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{101221}}^1$

素因数の和:101279

約数の個数: 40

約数和(自身を含む): 1669353224

約数和(自身を除く): 890356408

約数列:

[1, 2, 4, 8, 13, 16, 26, 37, 52, 74, 104, 148, 208, 296, 481, 592, 962, 1924, 3848, 7696, 101221, 202442, 404884, 809768, 1315873, 1619536, 2631746, 3745177, 5263492, 7490354, 10526984, 14980708, 21053968, 29961416, 48687301, 59922832, 97374602, 194749204, 389498408, 778996816]

約数ペア:

[(1, 778996816), (2, 389498408), (4, 194749204), (8, 97374602), (13, 59922832), (16, 48687301), (26, 29961416), (37, 21053968), (52, 14980708), (74, 10526984), (104, 7490354), (148, 5263492), (208, 3745177), (296, 2631746), (481, 1619536), (592, 1315873), (962, 809768), (1924, 404884), (3848, 202442), (7696, 101221)]