1099988090

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{1117}}^1$

素因数の和:1287

約数の個数: 64

約数和(自身を含む): 2144413440

約数和(自身を除く): 1044425350

約数列:

[1, 2, 5, 10, 19, 38, 71, 73, 95, 142, 146, 190, 355, 365, 710, 730, 1117, 1349, 1387, 2234, 2698, 2774, 5183, 5585, 6745, 6935, 10366, 11170, 13490, 13870, 21223, 25915, 42446, 51830, 79307, 81541, 98477, 106115, 158614, 163082, 196954, 212230, 396535, 407705, 492385, 793070, 815410, 984770, 1506833, 1549279, 3013666, 3098558, 5789411, 7534165, 7746395, 11578822, 15068330, 15492790, 28947055, 57894110, 109998809, 219997618, 549994045, 1099988090]

約数ペア:

[(1, 1099988090), (2, 549994045), (5, 219997618), (10, 109998809), (19, 57894110), (38, 28947055), (71, 15492790), (73, 15068330), (95, 11578822), (142, 7746395), (146, 7534165), (190, 5789411), (355, 3098558), (365, 3013666), (710, 1549279), (730, 1506833), (1117, 984770), (1349, 815410), (1387, 793070), (2234, 492385), (2698, 407705), (2774, 396535), (5183, 212230), (5585, 196954), (6745, 163082), (6935, 158614), (10366, 106115), (11170, 98477), (13490, 81541), (13870, 79307), (21223, 51830), (25915, 42446)]