256075340

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:255

約数の個数: 96

約数和(自身を含む): 575769600

約数和(自身を除く): 319694260

約数列:

[1, 2, 4, 5, 10, 20, 41, 59, 67, 79, 82, 118, 134, 158, 164, 205, 236, 268, 295, 316, 335, 395, 410, 590, 670, 790, 820, 1180, 1340, 1580, 2419, 2747, 3239, 3953, 4661, 4838, 5293, 5494, 6478, 7906, 9322, 9676, 10586, 10988, 12095, 12956, 13735, 15812, 16195, 18644, 19765, 21172, 23305, 24190, 26465, 27470, 32390, 39530, 46610, 48380, 52930, 54940, 64780, 79060, 93220, 105860, 162073, 191101, 217013, 312287, 324146, 382202, 434026, 624574, 648292, 764404, 810365, 868052, 955505, 1085065, 1249148, 1561435, 1620730, 1911010, 2170130, 3122870, 3241460, 3822020, 4340260, 6245740, 12803767, 25607534, 51215068, 64018835, 128037670, 256075340]

約数ペア:

[(1, 256075340), (2, 128037670), (4, 64018835), (5, 51215068), (10, 25607534), (20, 12803767), (41, 6245740), (59, 4340260), (67, 3822020), (79, 3241460), (82, 3122870), (118, 2170130), (134, 1911010), (158, 1620730), (164, 1561435), (205, 1249148), (236, 1085065), (268, 955505), (295, 868052), (316, 810365), (335, 764404), (395, 648292), (410, 624574), (590, 434026), (670, 382202), (790, 324146), (820, 312287), (1180, 217013), (1340, 191101), (1580, 162073), (2419, 105860), (2747, 93220), (3239, 79060), (3953, 64780), (4661, 54940), (4838, 52930), (5293, 48380), (5494, 46610), (6478, 39530), (7906, 32390), (9322, 27470), (9676, 26465), (10586, 24190), (10988, 23305), (12095, 21172), (12956, 19765), (13735, 18644), (15812, 16195)]