20567560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1069}}^1$

素因数の和:1130

約数の個数: 64

約数和(自身を含む): 51231600

約数和(自身を除く): 30664040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 52, 65, 74, 104, 130, 148, 185, 260, 296, 370, 481, 520, 740, 962, 1069, 1480, 1924, 2138, 2405, 3848, 4276, 4810, 5345, 8552, 9620, 10690, 13897, 19240, 21380, 27794, 39553, 42760, 55588, 69485, 79106, 111176, 138970, 158212, 197765, 277940, 316424, 395530, 514189, 555880, 791060, 1028378, 1582120, 2056756, 2570945, 4113512, 5141890, 10283780, 20567560]

約数ペア:

[(1, 20567560), (2, 10283780), (4, 5141890), (5, 4113512), (8, 2570945), (10, 2056756), (13, 1582120), (20, 1028378), (26, 791060), (37, 555880), (40, 514189), (52, 395530), (65, 316424), (74, 277940), (104, 197765), (130, 158212), (148, 138970), (185, 111176), (260, 79106), (296, 69485), (370, 55588), (481, 42760), (520, 39553), (740, 27794), (962, 21380), (1069, 19240), (1480, 13897), (1924, 10690), (2138, 9620), (2405, 8552), (3848, 5345), (4276, 4810)]