2018690720

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{664043}}^1$

素因数の和:664077

約数の個数: 48

約数和(自身を含む): 5020172640

約数和(自身を除く): 3001481920

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, 664043, 1328086, 2656172, 3320215, 5312344, 6640430, 10624688, 12616817, 13280860, 21249376, 25233634, 26561720, 50467268, 53123440, 63084085, 100934536, 106246880, 126168170, 201869072, 252336340, 403738144, 504672680, 1009345360, 2018690720]

約数ペア:

[(1, 2018690720), (2, 1009345360), (4, 504672680), (5, 403738144), (8, 252336340), (10, 201869072), (16, 126168170), (19, 106246880), (20, 100934536), (32, 63084085), (38, 53123440), (40, 50467268), (76, 26561720), (80, 25233634), (95, 21249376), (152, 13280860), (160, 12616817), (190, 10624688), (304, 6640430), (380, 5312344), (608, 3320215), (760, 2656172), (1520, 1328086), (3040, 664043)]