28221528

素因数分解:

$2^3\times 3^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{521}}^1$

素因数の和:628

約数の個数: 64

約数和(自身を含む): 73789920

約数和(自身を除く): 45568392

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 37, 61, 74, 111, 122, 148, 183, 222, 244, 296, 366, 444, 488, 521, 732, 888, 1042, 1464, 1563, 2084, 2257, 3126, 4168, 4514, 6252, 6771, 9028, 12504, 13542, 18056, 19277, 27084, 31781, 38554, 54168, 57831, 63562, 77108, 95343, 115662, 127124, 154216, 190686, 231324, 254248, 381372, 462648, 762744, 1175897, 2351794, 3527691, 4703588, 7055382, 9407176, 14110764, 28221528]

約数ペア:

[(1, 28221528), (2, 14110764), (3, 9407176), (4, 7055382), (6, 4703588), (8, 3527691), (12, 2351794), (24, 1175897), (37, 762744), (61, 462648), (74, 381372), (111, 254248), (122, 231324), (148, 190686), (183, 154216), (222, 127124), (244, 115662), (296, 95343), (366, 77108), (444, 63562), (488, 57831), (521, 54168), (732, 38554), (888, 31781), (1042, 27084), (1464, 19277), (1563, 18056), (2084, 13542), (2257, 12504), (3126, 9028), (4168, 6771), (4514, 6252)]