80988640

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{26641}}^1$

素因数の和:26675

約数の個数: 48

約数和(自身を含む): 201413520

約数和(自身を除く): 120424880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 26641, 53282, 106564, 133205, 213128, 266410, 426256, 506179, 532820, 852512, 1012358, 1065640, 2024716, 2131280, 2530895, 4049432, 4262560, 5061790, 8098864, 10123580, 16197728, 20247160, 40494320, 80988640]

約数ペア:

[(1, 80988640), (2, 40494320), (4, 20247160), (5, 16197728), (8, 10123580), (10, 8098864), (16, 5061790), (19, 4262560), (20, 4049432), (32, 2530895), (38, 2131280), (40, 2024716), (76, 1065640), (80, 1012358), (95, 852512), (152, 532820), (160, 506179), (190, 426256), (304, 266410), (380, 213128), (608, 133205), (760, 106564), (1520, 53282), (3040, 26641)]