19631680

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1979}}^1$

素因数の和:2027

約数の個数: 56

約数和(自身を含む): 48280320

約数和(自身を除く): 28648640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1979, 1984, 2480, 3958, 4960, 7916, 9895, 9920, 15832, 19790, 31664, 39580, 61349, 63328, 79160, 122698, 126656, 158320, 245396, 306745, 316640, 490792, 613490, 633280, 981584, 1226980, 1963168, 2453960, 3926336, 4907920, 9815840, 19631680]

約数ペア:

[(1, 19631680), (2, 9815840), (4, 4907920), (5, 3926336), (8, 2453960), (10, 1963168), (16, 1226980), (20, 981584), (31, 633280), (32, 613490), (40, 490792), (62, 316640), (64, 306745), (80, 245396), (124, 158320), (155, 126656), (160, 122698), (248, 79160), (310, 63328), (320, 61349), (496, 39580), (620, 31664), (992, 19790), (1240, 15832), (1979, 9920), (1984, 9895), (2480, 7916), (3958, 4960)]