281504806

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{211}}^1$

素因数の和:421

約数の個数: 48

約数和(自身を含む): 482151600

約数和(自身を除く): 200646794

約数列:

[1, 2, 11, 22, 37, 74, 121, 149, 211, 242, 298, 407, 422, 814, 1639, 2321, 3278, 4477, 4642, 5513, 7807, 8954, 11026, 15614, 18029, 25531, 31439, 36058, 51062, 60643, 62878, 85877, 121286, 171754, 345829, 667073, 691658, 944647, 1163243, 1334146, 1889294, 2326486, 3804119, 7608238, 12795673, 25591346, 140752403, 281504806]

約数ペア:

[(1, 281504806), (2, 140752403), (11, 25591346), (22, 12795673), (37, 7608238), (74, 3804119), (121, 2326486), (149, 1889294), (211, 1334146), (242, 1163243), (298, 944647), (407, 691658), (422, 667073), (814, 345829), (1639, 171754), (2321, 121286), (3278, 85877), (4477, 62878), (4642, 60643), (5513, 51062), (7807, 36058), (8954, 31439), (11026, 25531), (15614, 18029)]