85289720

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{40231}}^1$

素因数の和:40295

約数の個数: 32

約数和(自身を含む): 195527520

約数和(自身を除く): 110237800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 40231, 80462, 160924, 201155, 321848, 402310, 804620, 1609240, 2132243, 4264486, 8528972, 10661215, 17057944, 21322430, 42644860, 85289720]

約数ペア:

[(1, 85289720), (2, 42644860), (4, 21322430), (5, 17057944), (8, 10661215), (10, 8528972), (20, 4264486), (40, 2132243), (53, 1609240), (106, 804620), (212, 402310), (265, 321848), (424, 201155), (530, 160924), (1060, 80462), (2120, 40231)]