20246987960

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1481}}^1\times {\mathrm{2609}}^1$

素因数の和:4232

約数の個数: 64

約数和(自身を含む): 45952077600

約数和(自身を除く): 25705089640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 1481, 2609, 2620, 2962, 5218, 5240, 5924, 7405, 10436, 11848, 13045, 14810, 20872, 26090, 29620, 52180, 59240, 104360, 194011, 341779, 388022, 683558, 776044, 970055, 1367116, 1552088, 1708895, 1940110, 2734232, 3417790, 3863929, 3880220, 6835580, 7727858, 7760440, 13671160, 15455716, 19319645, 30911432, 38639290, 77278580, 154557160, 506174699, 1012349398, 2024698796, 2530873495, 4049397592, 5061746990, 10123493980, 20246987960]

約数ペア:

[(1, 20246987960), (2, 10123493980), (4, 5061746990), (5, 4049397592), (8, 2530873495), (10, 2024698796), (20, 1012349398), (40, 506174699), (131, 154557160), (262, 77278580), (524, 38639290), (655, 30911432), (1048, 19319645), (1310, 15455716), (1481, 13671160), (2609, 7760440), (2620, 7727858), (2962, 6835580), (5218, 3880220), (5240, 3863929), (5924, 3417790), (7405, 2734232), (10436, 1940110), (11848, 1708895), (13045, 1552088), (14810, 1367116), (20872, 970055), (26090, 776044), (29620, 683558), (52180, 388022), (59240, 341779), (104360, 194011)]