21553680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2897}}^1$

素因数の和:2944

約数の個数: 80

約数和(自身を含む): 68995584

約数和(自身を除く): 47441904

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 2897, 3720, 5794, 7440, 8691, 11588, 14485, 17382, 23176, 28970, 34764, 43455, 46352, 57940, 69528, 86910, 89807, 115880, 139056, 173820, 179614, 231760, 269421, 347640, 359228, 449035, 538842, 695280, 718456, 898070, 1077684, 1347105, 1436912, 1796140, 2155368, 2694210, 3592280, 4310736, 5388420, 7184560, 10776840, 21553680]

約数ペア:

[(1, 21553680), (2, 10776840), (3, 7184560), (4, 5388420), (5, 4310736), (6, 3592280), (8, 2694210), (10, 2155368), (12, 1796140), (15, 1436912), (16, 1347105), (20, 1077684), (24, 898070), (30, 718456), (31, 695280), (40, 538842), (48, 449035), (60, 359228), (62, 347640), (80, 269421), (93, 231760), (120, 179614), (124, 173820), (155, 139056), (186, 115880), (240, 89807), (248, 86910), (310, 69528), (372, 57940), (465, 46352), (496, 43455), (620, 34764), (744, 28970), (930, 23176), (1240, 17382), (1488, 14485), (1860, 11588), (2480, 8691), (2897, 7440), (3720, 5794)]