640320996

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{245899}}^1$

素因数の和:245944

約数の個数: 48

約数和(自身を含む): 1762611200

約数和(自身を除く): 1122290204

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 31, 42, 62, 84, 93, 124, 186, 217, 372, 434, 651, 868, 1302, 2604, 245899, 491798, 737697, 983596, 1475394, 1721293, 2950788, 3442586, 5163879, 6885172, 7622869, 10327758, 15245738, 20655516, 22868607, 30491476, 45737214, 53360083, 91474428, 106720166, 160080249, 213440332, 320160498, 640320996]

約数ペア:

[(1, 640320996), (2, 320160498), (3, 213440332), (4, 160080249), (6, 106720166), (7, 91474428), (12, 53360083), (14, 45737214), (21, 30491476), (28, 22868607), (31, 20655516), (42, 15245738), (62, 10327758), (84, 7622869), (93, 6885172), (124, 5163879), (186, 3442586), (217, 2950788), (372, 1721293), (434, 1475394), (651, 983596), (868, 737697), (1302, 491798), (2604, 245899)]