20339480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{4273}}^1$

素因数の和:4308

約数の個数: 64

約数和(自身を含む): 55391040

約数和(自身を除く): 35051560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 85, 119, 136, 140, 170, 238, 280, 340, 476, 595, 680, 952, 1190, 2380, 4273, 4760, 8546, 17092, 21365, 29911, 34184, 42730, 59822, 72641, 85460, 119644, 145282, 149555, 170920, 239288, 290564, 299110, 363205, 508487, 581128, 598220, 726410, 1016974, 1196440, 1452820, 2033948, 2542435, 2905640, 4067896, 5084870, 10169740, 20339480]

約数ペア:

[(1, 20339480), (2, 10169740), (4, 5084870), (5, 4067896), (7, 2905640), (8, 2542435), (10, 2033948), (14, 1452820), (17, 1196440), (20, 1016974), (28, 726410), (34, 598220), (35, 581128), (40, 508487), (56, 363205), (68, 299110), (70, 290564), (85, 239288), (119, 170920), (136, 149555), (140, 145282), (170, 119644), (238, 85460), (280, 72641), (340, 59822), (476, 42730), (595, 34184), (680, 29911), (952, 21365), (1190, 17092), (2380, 8546), (4273, 4760)]