221623640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{4373}}^1$

素因数の和:4572

約数の個数: 64

約数和(自身を含む): 573168960

約数和(自身を除く): 351545320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 181, 280, 362, 724, 905, 1267, 1448, 1810, 2534, 3620, 4373, 5068, 6335, 7240, 8746, 10136, 12670, 17492, 21865, 25340, 30611, 34984, 43730, 50680, 61222, 87460, 122444, 153055, 174920, 244888, 306110, 612220, 791513, 1224440, 1583026, 3166052, 3957565, 5540591, 6332104, 7915130, 11081182, 15830260, 22162364, 27702955, 31660520, 44324728, 55405910, 110811820, 221623640]

約数ペア:

[(1, 221623640), (2, 110811820), (4, 55405910), (5, 44324728), (7, 31660520), (8, 27702955), (10, 22162364), (14, 15830260), (20, 11081182), (28, 7915130), (35, 6332104), (40, 5540591), (56, 3957565), (70, 3166052), (140, 1583026), (181, 1224440), (280, 791513), (362, 612220), (724, 306110), (905, 244888), (1267, 174920), (1448, 153055), (1810, 122444), (2534, 87460), (3620, 61222), (4373, 50680), (5068, 43730), (6335, 34984), (7240, 30611), (8746, 25340), (10136, 21865), (12670, 17492)]