31953320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{821}}^1$

素因数の和:978

約数の個数: 64

約数和(自身を含む): 82857600

約数和(自身を除く): 50904280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 139, 140, 278, 280, 556, 695, 821, 973, 1112, 1390, 1642, 1946, 2780, 3284, 3892, 4105, 4865, 5560, 5747, 6568, 7784, 8210, 9730, 11494, 16420, 19460, 22988, 28735, 32840, 38920, 45976, 57470, 114119, 114940, 228238, 229880, 456476, 570595, 798833, 912952, 1141190, 1597666, 2282380, 3195332, 3994165, 4564760, 6390664, 7988330, 15976660, 31953320]

約数ペア:

[(1, 31953320), (2, 15976660), (4, 7988330), (5, 6390664), (7, 4564760), (8, 3994165), (10, 3195332), (14, 2282380), (20, 1597666), (28, 1141190), (35, 912952), (40, 798833), (56, 570595), (70, 456476), (139, 229880), (140, 228238), (278, 114940), (280, 114119), (556, 57470), (695, 45976), (821, 38920), (973, 32840), (1112, 28735), (1390, 22988), (1642, 19460), (1946, 16420), (2780, 11494), (3284, 9730), (3892, 8210), (4105, 7784), (4865, 6568), (5560, 5747)]