128165120

素因数分解:

$2^8\times 5^1\times {\mathrm{100129}}^1$

素因数の和:100150

約数の個数: 36

約数和(自身を含む): 306998580

約数和(自身を除く): 178833460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 100129, 200258, 400516, 500645, 801032, 1001290, 1602064, 2002580, 3204128, 4005160, 6408256, 8010320, 12816512, 16020640, 25633024, 32041280, 64082560, 128165120]

約数ペア:

[(1, 128165120), (2, 64082560), (4, 32041280), (5, 25633024), (8, 16020640), (10, 12816512), (16, 8010320), (20, 6408256), (32, 4005160), (40, 3204128), (64, 2002580), (80, 1602064), (128, 1001290), (160, 801032), (256, 500645), (320, 400516), (640, 200258), (1280, 100129)]