81702920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{3343}}^1$

素因数の和:3414

約数の個数: 64

約数和(自身を含む): 202245120

約数和(自身を除く): 120542200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 47, 52, 65, 94, 104, 130, 188, 235, 260, 376, 470, 520, 611, 940, 1222, 1880, 2444, 3055, 3343, 4888, 6110, 6686, 12220, 13372, 16715, 24440, 26744, 33430, 43459, 66860, 86918, 133720, 157121, 173836, 217295, 314242, 347672, 434590, 628484, 785605, 869180, 1256968, 1571210, 1738360, 2042573, 3142420, 4085146, 6284840, 8170292, 10212865, 16340584, 20425730, 40851460, 81702920]

約数ペア:

[(1, 81702920), (2, 40851460), (4, 20425730), (5, 16340584), (8, 10212865), (10, 8170292), (13, 6284840), (20, 4085146), (26, 3142420), (40, 2042573), (47, 1738360), (52, 1571210), (65, 1256968), (94, 869180), (104, 785605), (130, 628484), (188, 434590), (235, 347672), (260, 314242), (376, 217295), (470, 173836), (520, 157121), (611, 133720), (940, 86918), (1222, 66860), (1880, 43459), (2444, 33430), (3055, 26744), (3343, 24440), (4888, 16715), (6110, 13372), (6686, 12220)]