18037980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{4357}}^1$

素因数の和:4395

約数の個数: 72

約数和(自身を含む): 57107232

約数和(自身を除く): 39069252

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 4357, 8714, 13071, 17428, 21785, 26142, 39213, 43570, 52284, 65355, 78426, 87140, 100211, 130710, 156852, 196065, 200422, 261420, 300633, 392130, 400844, 501055, 601266, 784260, 901899, 1002110, 1202532, 1503165, 1803798, 2004220, 3006330, 3607596, 4509495, 6012660, 9018990, 18037980]

約数ペア:

[(1, 18037980), (2, 9018990), (3, 6012660), (4, 4509495), (5, 3607596), (6, 3006330), (9, 2004220), (10, 1803798), (12, 1503165), (15, 1202532), (18, 1002110), (20, 901899), (23, 784260), (30, 601266), (36, 501055), (45, 400844), (46, 392130), (60, 300633), (69, 261420), (90, 200422), (92, 196065), (115, 156852), (138, 130710), (180, 100211), (207, 87140), (230, 78426), (276, 65355), (345, 52284), (414, 43570), (460, 39213), (690, 26142), (828, 21785), (1035, 17428), (1380, 13071), (2070, 8714), (4140, 4357)]