2161064560

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{45863}}^1$

素因数の和:45926

約数の個数: 80

約数和(自身を含む): 5459650560

約数和(自身を除く): 3298586000

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 38, 40, 62, 76, 80, 95, 124, 152, 155, 190, 248, 304, 310, 380, 496, 589, 620, 760, 1178, 1240, 1520, 2356, 2480, 2945, 4712, 5890, 9424, 11780, 23560, 45863, 47120, 91726, 183452, 229315, 366904, 458630, 733808, 871397, 917260, 1421753, 1742794, 1834520, 2843506, 3485588, 3669040, 4356985, 5687012, 6971176, 7108765, 8713970, 11374024, 13942352, 14217530, 17427940, 22748048, 27013307, 28435060, 34855880, 54026614, 56870120, 69711760, 108053228, 113740240, 135066535, 216106456, 270133070, 432212912, 540266140, 1080532280, 2161064560]

約数ペア:

[(1, 2161064560), (2, 1080532280), (4, 540266140), (5, 432212912), (8, 270133070), (10, 216106456), (16, 135066535), (19, 113740240), (20, 108053228), (31, 69711760), (38, 56870120), (40, 54026614), (62, 34855880), (76, 28435060), (80, 27013307), (95, 22748048), (124, 17427940), (152, 14217530), (155, 13942352), (190, 11374024), (248, 8713970), (304, 7108765), (310, 6971176), (380, 5687012), (496, 4356985), (589, 3669040), (620, 3485588), (760, 2843506), (1178, 1834520), (1240, 1742794), (1520, 1421753), (2356, 917260), (2480, 871397), (2945, 733808), (4712, 458630), (5890, 366904), (9424, 229315), (11780, 183452), (23560, 91726), (45863, 47120)]