128824520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{2591}}^1$

素因数の和:2726

約数の個数: 64

約数和(自身を含む): 319127040

約数和(自身を除く): 190302520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 113, 220, 226, 440, 452, 565, 904, 1130, 1243, 2260, 2486, 2591, 4520, 4972, 5182, 6215, 9944, 10364, 12430, 12955, 20728, 24860, 25910, 28501, 49720, 51820, 57002, 103640, 114004, 142505, 228008, 285010, 292783, 570020, 585566, 1140040, 1171132, 1463915, 2342264, 2927830, 3220613, 5855660, 6441226, 11711320, 12882452, 16103065, 25764904, 32206130, 64412260, 128824520]

約数ペア:

[(1, 128824520), (2, 64412260), (4, 32206130), (5, 25764904), (8, 16103065), (10, 12882452), (11, 11711320), (20, 6441226), (22, 5855660), (40, 3220613), (44, 2927830), (55, 2342264), (88, 1463915), (110, 1171132), (113, 1140040), (220, 585566), (226, 570020), (440, 292783), (452, 285010), (565, 228008), (904, 142505), (1130, 114004), (1243, 103640), (2260, 57002), (2486, 51820), (2591, 49720), (4520, 28501), (4972, 25910), (5182, 24860), (6215, 20728), (9944, 12955), (10364, 12430)]