664801696

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{51551}}^1$

素因数の和:51605

約数の個数: 48

約数和(自身を含む): 1455003648

約数和(自身を除く): 790201952

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 104, 124, 208, 248, 403, 416, 496, 806, 992, 1612, 3224, 6448, 12896, 51551, 103102, 206204, 412408, 670163, 824816, 1340326, 1598081, 1649632, 2680652, 3196162, 5361304, 6392324, 10722608, 12784648, 20775053, 21445216, 25569296, 41550106, 51138592, 83100212, 166200424, 332400848, 664801696]

約数ペア:

[(1, 664801696), (2, 332400848), (4, 166200424), (8, 83100212), (13, 51138592), (16, 41550106), (26, 25569296), (31, 21445216), (32, 20775053), (52, 12784648), (62, 10722608), (104, 6392324), (124, 5361304), (208, 3196162), (248, 2680652), (403, 1649632), (416, 1598081), (496, 1340326), (806, 824816), (992, 670163), (1612, 412408), (3224, 206204), (6448, 103102), (12896, 51551)]