248701640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{419}}^1$

素因数の和:531

約数の個数: 128

約数和(自身を含む): 653184000

約数和(自身を除く): 404482360

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 71, 76, 88, 95, 110, 142, 152, 190, 209, 220, 284, 355, 380, 418, 419, 440, 568, 710, 760, 781, 836, 838, 1045, 1349, 1420, 1562, 1672, 1676, 2090, 2095, 2698, 2840, 3124, 3352, 3905, 4180, 4190, 4609, 5396, 6248, 6745, 7810, 7961, 8360, 8380, 9218, 10792, 13490, 14839, 15620, 15922, 16760, 18436, 23045, 26980, 29678, 29749, 31240, 31844, 36872, 39805, 46090, 53960, 59356, 59498, 63688, 74195, 79610, 87571, 92180, 118712, 118996, 148390, 148745, 159220, 175142, 184360, 237992, 296780, 297490, 318440, 327239, 350284, 437855, 565231, 593560, 594980, 654478, 700568, 875710, 1130462, 1189960, 1308956, 1636195, 1751420, 2260924, 2617912, 2826155, 3272390, 3502840, 4521848, 5652310, 6217541, 6544780, 11304620, 12435082, 13089560, 22609240, 24870164, 31087705, 49740328, 62175410, 124350820, 248701640]

約数ペア:

[(1, 248701640), (2, 124350820), (4, 62175410), (5, 49740328), (8, 31087705), (10, 24870164), (11, 22609240), (19, 13089560), (20, 12435082), (22, 11304620), (38, 6544780), (40, 6217541), (44, 5652310), (55, 4521848), (71, 3502840), (76, 3272390), (88, 2826155), (95, 2617912), (110, 2260924), (142, 1751420), (152, 1636195), (190, 1308956), (209, 1189960), (220, 1130462), (284, 875710), (355, 700568), (380, 654478), (418, 594980), (419, 593560), (440, 565231), (568, 437855), (710, 350284), (760, 327239), (781, 318440), (836, 297490), (838, 296780), (1045, 237992), (1349, 184360), (1420, 175142), (1562, 159220), (1672, 148745), (1676, 148390), (2090, 118996), (2095, 118712), (2698, 92180), (2840, 87571), (3124, 79610), (3352, 74195), (3905, 63688), (4180, 59498), (4190, 59356), (4609, 53960), (5396, 46090), (6248, 39805), (6745, 36872), (7810, 31844), (7961, 31240), (8360, 29749), (8380, 29678), (9218, 26980), (10792, 23045), (13490, 18436), (14839, 16760), (15620, 15922)]