6651990

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{347}}^1$

素因数の和:434

約数の個数: 64

約数和(自身を含む): 18040320

約数和(自身を除く): 11388330

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 71, 90, 135, 142, 213, 270, 347, 355, 426, 639, 694, 710, 1041, 1065, 1278, 1735, 1917, 2082, 2130, 3123, 3195, 3470, 3834, 5205, 6246, 6390, 9369, 9585, 10410, 15615, 18738, 19170, 24637, 31230, 46845, 49274, 73911, 93690, 123185, 147822, 221733, 246370, 369555, 443466, 665199, 739110, 1108665, 1330398, 2217330, 3325995, 6651990]

約数ペア:

[(1, 6651990), (2, 3325995), (3, 2217330), (5, 1330398), (6, 1108665), (9, 739110), (10, 665199), (15, 443466), (18, 369555), (27, 246370), (30, 221733), (45, 147822), (54, 123185), (71, 93690), (90, 73911), (135, 49274), (142, 46845), (213, 31230), (270, 24637), (347, 19170), (355, 18738), (426, 15615), (639, 10410), (694, 9585), (710, 9369), (1041, 6390), (1065, 6246), (1278, 5205), (1735, 3834), (1917, 3470), (2082, 3195), (2130, 3123)]