72146781

素因数分解:

$3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1$

素因数の和:256

約数の個数: 80

約数和(自身を含む): 133893760

約数和(自身を除く): 61746979

約数列:

[1, 3, 7, 9, 19, 21, 27, 37, 57, 63, 81, 111, 133, 171, 181, 189, 259, 333, 399, 513, 543, 567, 703, 777, 999, 1197, 1267, 1539, 1629, 2109, 2331, 2997, 3439, 3591, 3801, 4887, 4921, 6327, 6697, 6993, 10317, 10773, 11403, 14661, 14763, 18981, 20091, 20979, 24073, 30951, 34209, 44289, 46879, 56943, 60273, 72219, 92853, 102627, 127243, 132867, 140637, 180819, 216657, 278559, 381729, 398601, 421911, 542457, 649971, 890701, 1145187, 1265733, 1949913, 2672103, 3435561, 3797199, 8016309, 10306683, 24048927, 72146781]

約数ペア:

[(1, 72146781), (3, 24048927), (7, 10306683), (9, 8016309), (19, 3797199), (21, 3435561), (27, 2672103), (37, 1949913), (57, 1265733), (63, 1145187), (81, 890701), (111, 649971), (133, 542457), (171, 421911), (181, 398601), (189, 381729), (259, 278559), (333, 216657), (399, 180819), (513, 140637), (543, 132867), (567, 127243), (703, 102627), (777, 92853), (999, 72219), (1197, 60273), (1267, 56943), (1539, 46879), (1629, 44289), (2109, 34209), (2331, 30951), (2997, 24073), (3439, 20979), (3591, 20091), (3801, 18981), (4887, 14763), (4921, 14661), (6327, 11403), (6697, 10773), (6993, 10317)]