129412640

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{115547}}^1$

素因数の和:115569

約数の個数: 48

約数和(自身を含む): 349417152

約数和(自身を除く): 220004512

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 115547, 231094, 462188, 577735, 808829, 924376, 1155470, 1617658, 1848752, 2310940, 3235316, 3697504, 4044145, 4621880, 6470632, 8088290, 9243760, 12941264, 16176580, 18487520, 25882528, 32353160, 64706320, 129412640]

約数ペア:

[(1, 129412640), (2, 64706320), (4, 32353160), (5, 25882528), (7, 18487520), (8, 16176580), (10, 12941264), (14, 9243760), (16, 8088290), (20, 6470632), (28, 4621880), (32, 4044145), (35, 3697504), (40, 3235316), (56, 2310940), (70, 1848752), (80, 1617658), (112, 1155470), (140, 924376), (160, 808829), (224, 577735), (280, 462188), (560, 231094), (1120, 115547)]