39621940

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{691}}^1$

素因数の和:808

約数の個数: 48

約数和(自身を含む): 86494464

約数和(自身を除く): 46872524

約数列:

[1, 2, 4, 5, 10, 20, 47, 61, 94, 122, 188, 235, 244, 305, 470, 610, 691, 940, 1220, 1382, 2764, 2867, 3455, 5734, 6910, 11468, 13820, 14335, 28670, 32477, 42151, 57340, 64954, 84302, 129908, 162385, 168604, 210755, 324770, 421510, 649540, 843020, 1981097, 3962194, 7924388, 9905485, 19810970, 39621940]

約数ペア:

[(1, 39621940), (2, 19810970), (4, 9905485), (5, 7924388), (10, 3962194), (20, 1981097), (47, 843020), (61, 649540), (94, 421510), (122, 324770), (188, 210755), (235, 168604), (244, 162385), (305, 129908), (470, 84302), (610, 64954), (691, 57340), (940, 42151), (1220, 32477), (1382, 28670), (2764, 14335), (2867, 13820), (3455, 11468), (5734, 6910)]