15805720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2971}}^1$

素因数の和:3008

約数の個数: 64

約数和(自身を含む): 42796800

約数和(自身を除く): 26991080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 2971, 5320, 5942, 11884, 14855, 20797, 23768, 29710, 41594, 56449, 59420, 83188, 103985, 112898, 118840, 166376, 207970, 225796, 282245, 395143, 415940, 451592, 564490, 790286, 831880, 1128980, 1580572, 1975715, 2257960, 3161144, 3951430, 7902860, 15805720]

約数ペア:

[(1, 15805720), (2, 7902860), (4, 3951430), (5, 3161144), (7, 2257960), (8, 1975715), (10, 1580572), (14, 1128980), (19, 831880), (20, 790286), (28, 564490), (35, 451592), (38, 415940), (40, 395143), (56, 282245), (70, 225796), (76, 207970), (95, 166376), (133, 118840), (140, 112898), (152, 103985), (190, 83188), (266, 59420), (280, 56449), (380, 41594), (532, 29710), (665, 23768), (760, 20797), (1064, 14855), (1330, 11884), (2660, 5942), (2971, 5320)]