84628760

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{491}}^1$

素因数の和:672

約数の個数: 64

約数和(自身を含む): 198374400

約数和(自身を除く): 113745640

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 139, 155, 248, 278, 310, 491, 556, 620, 695, 982, 1112, 1240, 1390, 1964, 2455, 2780, 3928, 4309, 4910, 5560, 8618, 9820, 15221, 17236, 19640, 21545, 30442, 34472, 43090, 60884, 68249, 76105, 86180, 121768, 136498, 152210, 172360, 272996, 304420, 341245, 545992, 608840, 682490, 1364980, 2115719, 2729960, 4231438, 8462876, 10578595, 16925752, 21157190, 42314380, 84628760]

約数ペア:

[(1, 84628760), (2, 42314380), (4, 21157190), (5, 16925752), (8, 10578595), (10, 8462876), (20, 4231438), (31, 2729960), (40, 2115719), (62, 1364980), (124, 682490), (139, 608840), (155, 545992), (248, 341245), (278, 304420), (310, 272996), (491, 172360), (556, 152210), (620, 136498), (695, 121768), (982, 86180), (1112, 76105), (1240, 68249), (1390, 60884), (1964, 43090), (2455, 34472), (2780, 30442), (3928, 21545), (4309, 19640), (4910, 17236), (5560, 15221), (8618, 9820)]