644211248

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{367}}^1\times {\mathrm{3539}}^1$

素因数の和:3945

約数の個数: 40

約数和(自身を含む): 1292298240

約数和(自身を除く): 648086992

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 367, 496, 734, 1468, 2936, 3539, 5872, 7078, 11377, 14156, 22754, 28312, 45508, 56624, 91016, 109709, 182032, 219418, 438836, 877672, 1298813, 1755344, 2597626, 5195252, 10390504, 20781008, 40263203, 80526406, 161052812, 322105624, 644211248]

約数ペア:

[(1, 644211248), (2, 322105624), (4, 161052812), (8, 80526406), (16, 40263203), (31, 20781008), (62, 10390504), (124, 5195252), (248, 2597626), (367, 1755344), (496, 1298813), (734, 877672), (1468, 438836), (2936, 219418), (3539, 182032), (5872, 109709), (7078, 91016), (11377, 56624), (14156, 45508), (22754, 28312)]