255065680

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{1399}}^1$

素因数の和:1508

約数の個数: 80

約数和(自身を含む): 618710400

約数和(自身を除く): 363644720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 53, 80, 86, 106, 172, 212, 215, 265, 344, 424, 430, 530, 688, 848, 860, 1060, 1399, 1720, 2120, 2279, 2798, 3440, 4240, 4558, 5596, 6995, 9116, 11192, 11395, 13990, 18232, 22384, 22790, 27980, 36464, 45580, 55960, 60157, 74147, 91160, 111920, 120314, 148294, 182320, 240628, 296588, 300785, 370735, 481256, 593176, 601570, 741470, 962512, 1186352, 1203140, 1482940, 2406280, 2965880, 3188321, 4812560, 5931760, 6376642, 12753284, 15941605, 25506568, 31883210, 51013136, 63766420, 127532840, 255065680]

約数ペア:

[(1, 255065680), (2, 127532840), (4, 63766420), (5, 51013136), (8, 31883210), (10, 25506568), (16, 15941605), (20, 12753284), (40, 6376642), (43, 5931760), (53, 4812560), (80, 3188321), (86, 2965880), (106, 2406280), (172, 1482940), (212, 1203140), (215, 1186352), (265, 962512), (344, 741470), (424, 601570), (430, 593176), (530, 481256), (688, 370735), (848, 300785), (860, 296588), (1060, 240628), (1399, 182320), (1720, 148294), (2120, 120314), (2279, 111920), (2798, 91160), (3440, 74147), (4240, 60157), (4558, 55960), (5596, 45580), (6995, 36464), (9116, 27980), (11192, 22790), (11395, 22384), (13990, 18232)]