20351320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2011}}^1$

素因数の和:2056

約数の個数: 64

約数和(自身を含む): 52151040

約数和(自身を除く): 31799720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 88, 92, 110, 115, 184, 220, 230, 253, 440, 460, 506, 920, 1012, 1265, 2011, 2024, 2530, 4022, 5060, 8044, 10055, 10120, 16088, 20110, 22121, 40220, 44242, 46253, 80440, 88484, 92506, 110605, 176968, 185012, 221210, 231265, 370024, 442420, 462530, 508783, 884840, 925060, 1017566, 1850120, 2035132, 2543915, 4070264, 5087830, 10175660, 20351320]

約数ペア:

[(1, 20351320), (2, 10175660), (4, 5087830), (5, 4070264), (8, 2543915), (10, 2035132), (11, 1850120), (20, 1017566), (22, 925060), (23, 884840), (40, 508783), (44, 462530), (46, 442420), (55, 370024), (88, 231265), (92, 221210), (110, 185012), (115, 176968), (184, 110605), (220, 92506), (230, 88484), (253, 80440), (440, 46253), (460, 44242), (506, 40220), (920, 22121), (1012, 20110), (1265, 16088), (2011, 10120), (2024, 10055), (2530, 8044), (4022, 5060)]