81448218

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{631}}^1$

素因数の和:811

約数の個数: 48

約数和(自身を含む): 181014912

約数和(自身を除く): 99566694

約数列:

[1, 2, 3, 6, 9, 18, 71, 101, 142, 202, 213, 303, 426, 606, 631, 639, 909, 1262, 1278, 1818, 1893, 3786, 5679, 7171, 11358, 14342, 21513, 43026, 44801, 63731, 64539, 89602, 127462, 129078, 134403, 191193, 268806, 382386, 403209, 573579, 806418, 1147158, 4524901, 9049802, 13574703, 27149406, 40724109, 81448218]

約数ペア:

[(1, 81448218), (2, 40724109), (3, 27149406), (6, 13574703), (9, 9049802), (18, 4524901), (71, 1147158), (101, 806418), (142, 573579), (202, 403209), (213, 382386), (303, 268806), (426, 191193), (606, 134403), (631, 129078), (639, 127462), (909, 89602), (1262, 64539), (1278, 63731), (1818, 44801), (1893, 43026), (3786, 21513), (5679, 14342), (7171, 11358)]