991445880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{449}}^1\times {\mathrm{18401}}^1$

素因数の和:18864

約数の個数: 64

約数和(自身を含む): 2981124000

約数和(自身を除く): 1989678120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 449, 898, 1347, 1796, 2245, 2694, 3592, 4490, 5388, 6735, 8980, 10776, 13470, 17960, 18401, 26940, 36802, 53880, 55203, 73604, 92005, 110406, 147208, 184010, 220812, 276015, 368020, 441624, 552030, 736040, 1104060, 2208120, 8262049, 16524098, 24786147, 33048196, 41310245, 49572294, 66096392, 82620490, 99144588, 123930735, 165240980, 198289176, 247861470, 330481960, 495722940, 991445880]

約数ペア:

[(1, 991445880), (2, 495722940), (3, 330481960), (4, 247861470), (5, 198289176), (6, 165240980), (8, 123930735), (10, 99144588), (12, 82620490), (15, 66096392), (20, 49572294), (24, 41310245), (30, 33048196), (40, 24786147), (60, 16524098), (120, 8262049), (449, 2208120), (898, 1104060), (1347, 736040), (1796, 552030), (2245, 441624), (2694, 368020), (3592, 276015), (4490, 220812), (5388, 184010), (6735, 147208), (8980, 110406), (10776, 92005), (13470, 73604), (17960, 55203), (18401, 53880), (26940, 36802)]