90428860

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{929}}^1$

素因数の和:1126

約数の個数: 48

約数和(自身を含む): 197487360

約数和(自身を除く): 107058500

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 157, 310, 314, 620, 628, 785, 929, 1570, 1858, 3140, 3716, 4645, 4867, 9290, 9734, 18580, 19468, 24335, 28799, 48670, 57598, 97340, 115196, 143995, 145853, 287990, 291706, 575980, 583412, 729265, 1458530, 2917060, 4521443, 9042886, 18085772, 22607215, 45214430, 90428860]

約数ペア:

[(1, 90428860), (2, 45214430), (4, 22607215), (5, 18085772), (10, 9042886), (20, 4521443), (31, 2917060), (62, 1458530), (124, 729265), (155, 583412), (157, 575980), (310, 291706), (314, 287990), (620, 145853), (628, 143995), (785, 115196), (929, 97340), (1570, 57598), (1858, 48670), (3140, 28799), (3716, 24335), (4645, 19468), (4867, 18580), (9290, 9734)]