20079540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8581}}^1$

素因数の和:8609

約数の個数: 72

約数和(自身を含む): 65600808

約数和(自身を除く): 45521268

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 8581, 17162, 25743, 34324, 42905, 51486, 77229, 85810, 102972, 111553, 128715, 154458, 171620, 223106, 257430, 308916, 334659, 386145, 446212, 514860, 557765, 669318, 772290, 1003977, 1115530, 1338636, 1544580, 1673295, 2007954, 2231060, 3346590, 4015908, 5019885, 6693180, 10039770, 20079540]

約数ペア:

[(1, 20079540), (2, 10039770), (3, 6693180), (4, 5019885), (5, 4015908), (6, 3346590), (9, 2231060), (10, 2007954), (12, 1673295), (13, 1544580), (15, 1338636), (18, 1115530), (20, 1003977), (26, 772290), (30, 669318), (36, 557765), (39, 514860), (45, 446212), (52, 386145), (60, 334659), (65, 308916), (78, 257430), (90, 223106), (117, 171620), (130, 154458), (156, 128715), (180, 111553), (195, 102972), (234, 85810), (260, 77229), (390, 51486), (468, 42905), (585, 34324), (780, 25743), (1170, 17162), (2340, 8581)]