87778480

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:171

約数の個数: 160

約数和(自身を含む): 235699200

約数和(自身を除く): 147920720

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 34, 38, 40, 43, 68, 76, 79, 80, 85, 86, 95, 136, 152, 158, 170, 172, 190, 215, 272, 304, 316, 323, 340, 344, 380, 395, 430, 632, 646, 680, 688, 731, 760, 790, 817, 860, 1264, 1292, 1343, 1360, 1462, 1501, 1520, 1580, 1615, 1634, 1720, 2584, 2686, 2924, 3002, 3160, 3230, 3268, 3397, 3440, 3655, 4085, 5168, 5372, 5848, 6004, 6320, 6460, 6536, 6715, 6794, 7310, 7505, 8170, 10744, 11696, 12008, 12920, 13072, 13430, 13588, 13889, 14620, 15010, 16340, 16985, 21488, 24016, 25517, 25840, 26860, 27176, 27778, 29240, 30020, 32680, 33970, 51034, 53720, 54352, 55556, 57749, 58480, 60040, 64543, 65360, 67940, 69445, 102068, 107440, 111112, 115498, 120080, 127585, 129086, 135880, 138890, 204136, 222224, 230996, 255170, 258172, 271760, 277780, 288745, 322715, 408272, 461992, 510340, 516344, 555560, 577490, 645430, 923984, 1020680, 1032688, 1097231, 1111120, 1154980, 1290860, 2041360, 2194462, 2309960, 2581720, 4388924, 4619920, 5163440, 5486155, 8777848, 10972310, 17555696, 21944620, 43889240, 87778480]

約数ペア:

[(1, 87778480), (2, 43889240), (4, 21944620), (5, 17555696), (8, 10972310), (10, 8777848), (16, 5486155), (17, 5163440), (19, 4619920), (20, 4388924), (34, 2581720), (38, 2309960), (40, 2194462), (43, 2041360), (68, 1290860), (76, 1154980), (79, 1111120), (80, 1097231), (85, 1032688), (86, 1020680), (95, 923984), (136, 645430), (152, 577490), (158, 555560), (170, 516344), (172, 510340), (190, 461992), (215, 408272), (272, 322715), (304, 288745), (316, 277780), (323, 271760), (340, 258172), (344, 255170), (380, 230996), (395, 222224), (430, 204136), (632, 138890), (646, 135880), (680, 129086), (688, 127585), (731, 120080), (760, 115498), (790, 111112), (817, 107440), (860, 102068), (1264, 69445), (1292, 67940), (1343, 65360), (1360, 64543), (1462, 60040), (1501, 58480), (1520, 57749), (1580, 55556), (1615, 54352), (1634, 53720), (1720, 51034), (2584, 33970), (2686, 32680), (2924, 30020), (3002, 29240), (3160, 27778), (3230, 27176), (3268, 26860), (3397, 25840), (3440, 25517), (3655, 24016), (4085, 21488), (5168, 16985), (5372, 16340), (5848, 15010), (6004, 14620), (6320, 13889), (6460, 13588), (6536, 13430), (6715, 13072), (6794, 12920), (7310, 12008), (7505, 11696), (8170, 10744)]