178333540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{233}}^1$

素因数の和:338

約数の個数: 144

約数和(自身を含む): 484009344

約数和(自身を除く): 305675804

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 71, 77, 98, 110, 140, 142, 154, 196, 220, 233, 245, 284, 308, 355, 385, 466, 490, 497, 539, 710, 770, 781, 932, 980, 994, 1078, 1165, 1420, 1540, 1562, 1631, 1988, 2156, 2330, 2485, 2563, 2695, 3124, 3262, 3479, 3905, 4660, 4970, 5126, 5390, 5467, 6524, 6958, 7810, 8155, 9940, 10252, 10780, 10934, 11417, 12815, 13916, 15620, 16310, 16543, 17395, 17941, 21868, 22834, 25630, 27335, 32620, 33086, 34790, 35882, 38269, 45668, 51260, 54670, 57085, 66172, 69580, 71764, 76538, 82715, 89705, 109340, 114170, 115801, 125587, 153076, 165430, 179410, 181973, 191345, 228340, 231602, 251174, 330860, 358820, 363946, 382690, 463204, 502348, 579005, 627935, 727892, 765380, 810607, 909865, 1158010, 1255870, 1273811, 1621214, 1819730, 2316020, 2511740, 2547622, 3242428, 3639460, 4053035, 5095244, 6369055, 8106070, 8916677, 12738110, 16212140, 17833354, 25476220, 35666708, 44583385, 89166770, 178333540]

約数ペア:

[(1, 178333540), (2, 89166770), (4, 44583385), (5, 35666708), (7, 25476220), (10, 17833354), (11, 16212140), (14, 12738110), (20, 8916677), (22, 8106070), (28, 6369055), (35, 5095244), (44, 4053035), (49, 3639460), (55, 3242428), (70, 2547622), (71, 2511740), (77, 2316020), (98, 1819730), (110, 1621214), (140, 1273811), (142, 1255870), (154, 1158010), (196, 909865), (220, 810607), (233, 765380), (245, 727892), (284, 627935), (308, 579005), (355, 502348), (385, 463204), (466, 382690), (490, 363946), (497, 358820), (539, 330860), (710, 251174), (770, 231602), (781, 228340), (932, 191345), (980, 181973), (994, 179410), (1078, 165430), (1165, 153076), (1420, 125587), (1540, 115801), (1562, 114170), (1631, 109340), (1988, 89705), (2156, 82715), (2330, 76538), (2485, 71764), (2563, 69580), (2695, 66172), (3124, 57085), (3262, 54670), (3479, 51260), (3905, 45668), (4660, 38269), (4970, 35882), (5126, 34790), (5390, 33086), (5467, 32620), (6524, 27335), (6958, 25630), (7810, 22834), (8155, 21868), (9940, 17941), (10252, 17395), (10780, 16543), (10934, 16310), (11417, 15620), (12815, 13916)]