645876

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{233}}^1$

素因数の和:261

約数の個数: 72

約数和(自身を含む): 2044224

約数和(自身を除く): 1398348

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 33, 36, 42, 44, 63, 66, 77, 84, 99, 126, 132, 154, 198, 231, 233, 252, 308, 396, 462, 466, 693, 699, 924, 932, 1386, 1398, 1631, 2097, 2563, 2772, 2796, 3262, 4194, 4893, 5126, 6524, 7689, 8388, 9786, 10252, 14679, 15378, 17941, 19572, 23067, 29358, 30756, 35882, 46134, 53823, 58716, 71764, 92268, 107646, 161469, 215292, 322938, 645876]

約数ペア:

[(1, 645876), (2, 322938), (3, 215292), (4, 161469), (6, 107646), (7, 92268), (9, 71764), (11, 58716), (12, 53823), (14, 46134), (18, 35882), (21, 30756), (22, 29358), (28, 23067), (33, 19572), (36, 17941), (42, 15378), (44, 14679), (63, 10252), (66, 9786), (77, 8388), (84, 7689), (99, 6524), (126, 5126), (132, 4893), (154, 4194), (198, 3262), (231, 2796), (233, 2772), (252, 2563), (308, 2097), (396, 1631), (462, 1398), (466, 1386), (693, 932), (699, 924)]