108649617680

素因数分解:

$2^4\times 5^1\times {\mathrm{431}}^1\times {\mathrm{1319}}^1\times {\mathrm{2389}}^1$

素因数の和:4152

約数の個数: 80

約数和(自身を含む): 253494489600

約数和(自身を除く): 144844871920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 431, 862, 1319, 1724, 2155, 2389, 2638, 3448, 4310, 4778, 5276, 6595, 6896, 8620, 9556, 10552, 11945, 13190, 17240, 19112, 21104, 23890, 26380, 34480, 38224, 47780, 52760, 95560, 105520, 191120, 568489, 1029659, 1136978, 2059318, 2273956, 2842445, 3151091, 4118636, 4547912, 5148295, 5684890, 6302182, 8237272, 9095824, 10296590, 11369780, 12604364, 15755455, 16474544, 20593180, 22739560, 25208728, 31510910, 41186360, 45479120, 50417456, 63021820, 82372720, 126043640, 252087280, 1358120221, 2716240442, 5432480884, 6790601105, 10864961768, 13581202210, 21729923536, 27162404420, 54324808840, 108649617680]

約数ペア:

[(1, 108649617680), (2, 54324808840), (4, 27162404420), (5, 21729923536), (8, 13581202210), (10, 10864961768), (16, 6790601105), (20, 5432480884), (40, 2716240442), (80, 1358120221), (431, 252087280), (862, 126043640), (1319, 82372720), (1724, 63021820), (2155, 50417456), (2389, 45479120), (2638, 41186360), (3448, 31510910), (4310, 25208728), (4778, 22739560), (5276, 20593180), (6595, 16474544), (6896, 15755455), (8620, 12604364), (9556, 11369780), (10552, 10296590), (11945, 9095824), (13190, 8237272), (17240, 6302182), (19112, 5684890), (21104, 5148295), (23890, 4547912), (26380, 4118636), (34480, 3151091), (38224, 2842445), (47780, 2273956), (52760, 2059318), (95560, 1136978), (105520, 1029659), (191120, 568489)]