278941185

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{6397}}^1$

素因数の和:6447

約数の個数: 64

約数和(自身を含む): 552787200

約数和(自身を除く): 273846015

約数列:

[1, 3, 5, 9, 15, 17, 19, 27, 45, 51, 57, 85, 95, 135, 153, 171, 255, 285, 323, 459, 513, 765, 855, 969, 1615, 2295, 2565, 2907, 4845, 6397, 8721, 14535, 19191, 31985, 43605, 57573, 95955, 108749, 121543, 172719, 287865, 326247, 364629, 543745, 607715, 863595, 978741, 1093887, 1631235, 1823145, 2066231, 2936223, 3281661, 4893705, 5469435, 6198693, 10331155, 14681115, 16408305, 18596079, 30993465, 55788237, 92980395, 278941185]

約数ペア:

[(1, 278941185), (3, 92980395), (5, 55788237), (9, 30993465), (15, 18596079), (17, 16408305), (19, 14681115), (27, 10331155), (45, 6198693), (51, 5469435), (57, 4893705), (85, 3281661), (95, 2936223), (135, 2066231), (153, 1823145), (171, 1631235), (255, 1093887), (285, 978741), (323, 863595), (459, 607715), (513, 543745), (765, 364629), (855, 326247), (969, 287865), (1615, 172719), (2295, 121543), (2565, 108749), (2907, 95955), (4845, 57573), (6397, 43605), (8721, 31985), (14535, 19191)]