19500090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{479}}^1$

素因数の和:571

約数の個数: 64

約数和(自身を含む): 49766400

約数和(自身を除く): 30266310

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 59, 69, 115, 118, 138, 177, 230, 295, 345, 354, 479, 590, 690, 885, 958, 1357, 1437, 1770, 2395, 2714, 2874, 4071, 4790, 6785, 7185, 8142, 11017, 13570, 14370, 20355, 22034, 28261, 33051, 40710, 55085, 56522, 66102, 84783, 110170, 141305, 165255, 169566, 282610, 330510, 423915, 650003, 847830, 1300006, 1950009, 3250015, 3900018, 6500030, 9750045, 19500090]

約数ペア:

[(1, 19500090), (2, 9750045), (3, 6500030), (5, 3900018), (6, 3250015), (10, 1950009), (15, 1300006), (23, 847830), (30, 650003), (46, 423915), (59, 330510), (69, 282610), (115, 169566), (118, 165255), (138, 141305), (177, 110170), (230, 84783), (295, 66102), (345, 56522), (354, 55085), (479, 40710), (590, 33051), (690, 28261), (885, 22034), (958, 20355), (1357, 14370), (1437, 13570), (1770, 11017), (2395, 8142), (2714, 7185), (2874, 6785), (4071, 4790)]