1640808620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{1621}}^1$

素因数の和:1791

約数の個数: 96

約数和(自身を含む): 3884702976

約数和(自身を除く): 2243894356

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 107, 110, 172, 214, 215, 220, 428, 430, 473, 535, 860, 946, 1070, 1177, 1621, 1892, 2140, 2354, 2365, 3242, 4601, 4708, 4730, 5885, 6484, 8105, 9202, 9460, 11770, 16210, 17831, 18404, 23005, 23540, 32420, 35662, 46010, 50611, 69703, 71324, 89155, 92020, 101222, 139406, 173447, 178310, 202444, 253055, 278812, 346894, 348515, 356620, 506110, 693788, 697030, 766733, 867235, 1012220, 1394060, 1533466, 1734470, 1907917, 3066932, 3468940, 3815834, 3833665, 7458221, 7631668, 7667330, 9539585, 14916442, 15334660, 19079170, 29832884, 37291105, 38158340, 74582210, 82040431, 149164420, 164080862, 328161724, 410202155, 820404310, 1640808620]

約数ペア:

[(1, 1640808620), (2, 820404310), (4, 410202155), (5, 328161724), (10, 164080862), (11, 149164420), (20, 82040431), (22, 74582210), (43, 38158340), (44, 37291105), (55, 29832884), (86, 19079170), (107, 15334660), (110, 14916442), (172, 9539585), (214, 7667330), (215, 7631668), (220, 7458221), (428, 3833665), (430, 3815834), (473, 3468940), (535, 3066932), (860, 1907917), (946, 1734470), (1070, 1533466), (1177, 1394060), (1621, 1012220), (1892, 867235), (2140, 766733), (2354, 697030), (2365, 693788), (3242, 506110), (4601, 356620), (4708, 348515), (4730, 346894), (5885, 278812), (6484, 253055), (8105, 202444), (9202, 178310), (9460, 173447), (11770, 139406), (16210, 101222), (17831, 92020), (18404, 89155), (23005, 71324), (23540, 69703), (32420, 50611), (35662, 46010)]