21432160

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:224

約数の個数: 96

約数和(自身を含む): 54432000

約数和(自身を除く): 32999840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 31, 32, 40, 58, 62, 80, 116, 124, 145, 149, 155, 160, 232, 248, 290, 298, 310, 464, 496, 580, 596, 620, 745, 899, 928, 992, 1160, 1192, 1240, 1490, 1798, 2320, 2384, 2480, 2980, 3596, 4321, 4495, 4619, 4640, 4768, 4960, 5960, 7192, 8642, 8990, 9238, 11920, 14384, 17284, 17980, 18476, 21605, 23095, 23840, 28768, 34568, 35960, 36952, 43210, 46190, 69136, 71920, 73904, 86420, 92380, 133951, 138272, 143840, 147808, 172840, 184760, 267902, 345680, 369520, 535804, 669755, 691360, 739040, 1071608, 1339510, 2143216, 2679020, 4286432, 5358040, 10716080, 21432160]

約数ペア:

[(1, 21432160), (2, 10716080), (4, 5358040), (5, 4286432), (8, 2679020), (10, 2143216), (16, 1339510), (20, 1071608), (29, 739040), (31, 691360), (32, 669755), (40, 535804), (58, 369520), (62, 345680), (80, 267902), (116, 184760), (124, 172840), (145, 147808), (149, 143840), (155, 138272), (160, 133951), (232, 92380), (248, 86420), (290, 73904), (298, 71920), (310, 69136), (464, 46190), (496, 43210), (580, 36952), (596, 35960), (620, 34568), (745, 28768), (899, 23840), (928, 23095), (992, 21605), (1160, 18476), (1192, 17980), (1240, 17284), (1490, 14384), (1798, 11920), (2320, 9238), (2384, 8990), (2480, 8642), (2980, 7192), (3596, 5960), (4321, 4960), (4495, 4768), (4619, 4640)]