20701590

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7583}}^1$

素因数の和:7613

約数の個数: 64

約数和(自身を含む): 61157376

約数和(自身を除く): 40455786

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 65, 70, 78, 91, 105, 130, 182, 195, 210, 273, 390, 455, 546, 910, 1365, 2730, 7583, 15166, 22749, 37915, 45498, 53081, 75830, 98579, 106162, 113745, 159243, 197158, 227490, 265405, 295737, 318486, 492895, 530810, 591474, 690053, 796215, 985790, 1380106, 1478685, 1592430, 2070159, 2957370, 3450265, 4140318, 6900530, 10350795, 20701590]

約数ペア:

[(1, 20701590), (2, 10350795), (3, 6900530), (5, 4140318), (6, 3450265), (7, 2957370), (10, 2070159), (13, 1592430), (14, 1478685), (15, 1380106), (21, 985790), (26, 796215), (30, 690053), (35, 591474), (39, 530810), (42, 492895), (65, 318486), (70, 295737), (78, 265405), (91, 227490), (105, 197158), (130, 159243), (182, 113745), (195, 106162), (210, 98579), (273, 75830), (390, 53081), (455, 45498), (546, 37915), (910, 22749), (1365, 15166), (2730, 7583)]