86989720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^3\times {\mathrm{73}}^1$

素因数の和:177

約数の個数: 64

約数和(自身を含む): 205021440

約数和(自身を除く): 118031720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 73, 124, 146, 155, 248, 292, 310, 365, 584, 620, 730, 961, 1240, 1460, 1922, 2263, 2920, 3844, 4526, 4805, 7688, 9052, 9610, 11315, 18104, 19220, 22630, 29791, 38440, 45260, 59582, 70153, 90520, 119164, 140306, 148955, 238328, 280612, 297910, 350765, 561224, 595820, 701530, 1191640, 1403060, 2174743, 2806120, 4349486, 8698972, 10873715, 17397944, 21747430, 43494860, 86989720]

約数ペア:

[(1, 86989720), (2, 43494860), (4, 21747430), (5, 17397944), (8, 10873715), (10, 8698972), (20, 4349486), (31, 2806120), (40, 2174743), (62, 1403060), (73, 1191640), (124, 701530), (146, 595820), (155, 561224), (248, 350765), (292, 297910), (310, 280612), (365, 238328), (584, 148955), (620, 140306), (730, 119164), (961, 90520), (1240, 70153), (1460, 59582), (1922, 45260), (2263, 38440), (2920, 29791), (3844, 22630), (4526, 19220), (4805, 18104), (7688, 11315), (9052, 9610)]