20827831960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7883}}^1\times {\mathrm{5081}}^1$

素因数の和:12988

約数の個数: 64

約数和(自身を含む): 50483774880

約数和(自身を除く): 29655942920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 5081, 7883, 10162, 15766, 20324, 25405, 31532, 39415, 40648, 50810, 63064, 66053, 78830, 101620, 102479, 132106, 157660, 203240, 204958, 264212, 315320, 330265, 409916, 512395, 528424, 660530, 819832, 1024790, 1321060, 2049580, 2642120, 4099160, 40053523, 80107046, 160214092, 200267615, 320428184, 400535230, 520695799, 801070460, 1041391598, 1602140920, 2082783196, 2603478995, 4165566392, 5206957990, 10413915980, 20827831960]

約数ペア:

[(1, 20827831960), (2, 10413915980), (4, 5206957990), (5, 4165566392), (8, 2603478995), (10, 2082783196), (13, 1602140920), (20, 1041391598), (26, 801070460), (40, 520695799), (52, 400535230), (65, 320428184), (104, 200267615), (130, 160214092), (260, 80107046), (520, 40053523), (5081, 4099160), (7883, 2642120), (10162, 2049580), (15766, 1321060), (20324, 1024790), (25405, 819832), (31532, 660530), (39415, 528424), (40648, 512395), (50810, 409916), (63064, 330265), (66053, 315320), (78830, 264212), (101620, 204958), (102479, 203240), (132106, 157660)]