20168045140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1294483}}^1$

素因数の和:1294552

約数の個数: 48

約数和(自身を含む): 45669395520

約数和(自身を除く): 25501350380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 380, 410, 779, 820, 1558, 3116, 3895, 7790, 15580, 1294483, 2588966, 5177932, 6472415, 12944830, 24595177, 25889660, 49190354, 53073803, 98380708, 106147606, 122975885, 212295212, 245951770, 265369015, 491903540, 530738030, 1008402257, 1061476060, 2016804514, 4033609028, 5042011285, 10084022570, 20168045140]

約数ペア:

[(1, 20168045140), (2, 10084022570), (4, 5042011285), (5, 4033609028), (10, 2016804514), (19, 1061476060), (20, 1008402257), (38, 530738030), (41, 491903540), (76, 265369015), (82, 245951770), (95, 212295212), (164, 122975885), (190, 106147606), (205, 98380708), (380, 53073803), (410, 49190354), (779, 25889660), (820, 24595177), (1558, 12944830), (3116, 6472415), (3895, 5177932), (7790, 2588966), (15580, 1294483)]