42581540

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{191}}^1$

素因数の和:428

約数の個数: 48

約数和(自身を含む): 91736064

約数和(自身を除く): 49154524

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 157, 191, 284, 314, 355, 382, 628, 710, 764, 785, 955, 1420, 1570, 1910, 3140, 3820, 11147, 13561, 22294, 27122, 29987, 44588, 54244, 55735, 59974, 67805, 111470, 119948, 135610, 149935, 222940, 271220, 299870, 599740, 2129077, 4258154, 8516308, 10645385, 21290770, 42581540]

約数ペア:

[(1, 42581540), (2, 21290770), (4, 10645385), (5, 8516308), (10, 4258154), (20, 2129077), (71, 599740), (142, 299870), (157, 271220), (191, 222940), (284, 149935), (314, 135610), (355, 119948), (382, 111470), (628, 67805), (710, 59974), (764, 55735), (785, 54244), (955, 44588), (1420, 29987), (1570, 27122), (1910, 22294), (3140, 13561), (3820, 11147)]