20639010

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{3389}}^1$

素因数の和:3435

約数の個数: 64

約数和(自身を含む): 58579200

約数和(自身を除く): 37940190

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 29, 30, 35, 42, 58, 70, 87, 105, 145, 174, 203, 210, 290, 406, 435, 609, 870, 1015, 1218, 2030, 3045, 3389, 6090, 6778, 10167, 16945, 20334, 23723, 33890, 47446, 50835, 71169, 98281, 101670, 118615, 142338, 196562, 237230, 294843, 355845, 491405, 589686, 687967, 711690, 982810, 1375934, 1474215, 2063901, 2948430, 3439835, 4127802, 6879670, 10319505, 20639010]

約数ペア:

[(1, 20639010), (2, 10319505), (3, 6879670), (5, 4127802), (6, 3439835), (7, 2948430), (10, 2063901), (14, 1474215), (15, 1375934), (21, 982810), (29, 711690), (30, 687967), (35, 589686), (42, 491405), (58, 355845), (70, 294843), (87, 237230), (105, 196562), (145, 142338), (174, 118615), (203, 101670), (210, 98281), (290, 71169), (406, 50835), (435, 47446), (609, 33890), (870, 23723), (1015, 20334), (1218, 16945), (2030, 10167), (3045, 6778), (3389, 6090)]