20337720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13037}}^1$

素因数の和:13064

約数の個数: 64

約数和(自身を含む): 65711520

約数和(自身を除く): 45373800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 13037, 26074, 39111, 52148, 65185, 78222, 104296, 130370, 156444, 169481, 195555, 260740, 312888, 338962, 391110, 508443, 521480, 677924, 782220, 847405, 1016886, 1355848, 1564440, 1694810, 2033772, 2542215, 3389620, 4067544, 5084430, 6779240, 10168860, 20337720]

約数ペア:

[(1, 20337720), (2, 10168860), (3, 6779240), (4, 5084430), (5, 4067544), (6, 3389620), (8, 2542215), (10, 2033772), (12, 1694810), (13, 1564440), (15, 1355848), (20, 1016886), (24, 847405), (26, 782220), (30, 677924), (39, 521480), (40, 508443), (52, 391110), (60, 338962), (65, 312888), (78, 260740), (104, 195555), (120, 169481), (130, 156444), (156, 130370), (195, 104296), (260, 78222), (312, 65185), (390, 52148), (520, 39111), (780, 26074), (1560, 13037)]