213886420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{51169}}^1$

素因数の和:51208

約数の個数: 48

約数和(自身を含む): 515793600

約数和(自身を除く): 301907180

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 51169, 102338, 204676, 255845, 511690, 562859, 972211, 1023380, 1125718, 1944422, 2251436, 2814295, 3888844, 4861055, 5628590, 9722110, 10694321, 11257180, 19444220, 21388642, 42777284, 53471605, 106943210, 213886420]

約数ペア:

[(1, 213886420), (2, 106943210), (4, 53471605), (5, 42777284), (10, 21388642), (11, 19444220), (19, 11257180), (20, 10694321), (22, 9722110), (38, 5628590), (44, 4861055), (55, 3888844), (76, 2814295), (95, 2251436), (110, 1944422), (190, 1125718), (209, 1023380), (220, 972211), (380, 562859), (418, 511690), (836, 255845), (1045, 204676), (2090, 102338), (4180, 51169)]