20406320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23189}}^1$

素因数の和:23213

約数の個数: 40

約数和(自身を含む): 51760080

約数和(自身を除く): 31353760

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 23189, 46378, 92756, 115945, 185512, 231890, 255079, 371024, 463780, 510158, 927560, 1020316, 1275395, 1855120, 2040632, 2550790, 4081264, 5101580, 10203160, 20406320]

約数ペア:

[(1, 20406320), (2, 10203160), (4, 5101580), (5, 4081264), (8, 2550790), (10, 2040632), (11, 1855120), (16, 1275395), (20, 1020316), (22, 927560), (40, 510158), (44, 463780), (55, 371024), (80, 255079), (88, 231890), (110, 185512), (176, 115945), (220, 92756), (440, 46378), (880, 23189)]