81844960

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{569}}^1$

素因数の和:644

約数の個数: 96

約数和(自身を含む): 206841600

約数和(自身を除く): 124996640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 31, 32, 40, 58, 62, 80, 116, 124, 145, 155, 160, 232, 248, 290, 310, 464, 496, 569, 580, 620, 899, 928, 992, 1138, 1160, 1240, 1798, 2276, 2320, 2480, 2845, 3596, 4495, 4552, 4640, 4960, 5690, 7192, 8990, 9104, 11380, 14384, 16501, 17639, 17980, 18208, 22760, 28768, 33002, 35278, 35960, 45520, 66004, 70556, 71920, 82505, 88195, 91040, 132008, 141112, 143840, 165010, 176390, 264016, 282224, 330020, 352780, 511531, 528032, 564448, 660040, 705560, 1023062, 1320080, 1411120, 2046124, 2557655, 2640160, 2822240, 4092248, 5115310, 8184496, 10230620, 16368992, 20461240, 40922480, 81844960]

約数ペア:

[(1, 81844960), (2, 40922480), (4, 20461240), (5, 16368992), (8, 10230620), (10, 8184496), (16, 5115310), (20, 4092248), (29, 2822240), (31, 2640160), (32, 2557655), (40, 2046124), (58, 1411120), (62, 1320080), (80, 1023062), (116, 705560), (124, 660040), (145, 564448), (155, 528032), (160, 511531), (232, 352780), (248, 330020), (290, 282224), (310, 264016), (464, 176390), (496, 165010), (569, 143840), (580, 141112), (620, 132008), (899, 91040), (928, 88195), (992, 82505), (1138, 71920), (1160, 70556), (1240, 66004), (1798, 45520), (2276, 35960), (2320, 35278), (2480, 33002), (2845, 28768), (3596, 22760), (4495, 18208), (4552, 17980), (4640, 17639), (4960, 16501), (5690, 14384), (7192, 11380), (8990, 9104)]