289373840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{211}}^1$

素因数の和:341

約数の個数: 160

約数和(自身を含む): 807567360

約数和(自身を除く): 518193520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 79, 80, 112, 124, 140, 155, 158, 211, 217, 248, 280, 310, 316, 395, 422, 434, 496, 553, 560, 620, 632, 790, 844, 868, 1055, 1085, 1106, 1240, 1264, 1477, 1580, 1688, 1736, 2110, 2170, 2212, 2449, 2480, 2765, 2954, 3160, 3376, 3472, 4220, 4340, 4424, 4898, 5530, 5908, 6320, 6541, 7385, 8440, 8680, 8848, 9796, 11060, 11816, 12245, 13082, 14770, 16669, 16880, 17143, 17360, 19592, 22120, 23632, 24490, 26164, 29540, 32705, 33338, 34286, 39184, 44240, 45787, 48980, 52328, 59080, 65410, 66676, 68572, 83345, 85715, 91574, 97960, 104656, 116683, 118160, 130820, 133352, 137144, 166690, 171430, 183148, 195920, 228935, 233366, 261640, 266704, 274288, 333380, 342860, 366296, 457870, 466732, 516739, 523280, 583415, 666760, 685720, 732592, 915740, 933464, 1033478, 1166830, 1333520, 1371440, 1831480, 1866928, 2066956, 2333660, 2583695, 3617173, 3662960, 4133912, 4667320, 5167390, 7234346, 8267824, 9334640, 10334780, 14468692, 18085865, 20669560, 28937384, 36171730, 41339120, 57874768, 72343460, 144686920, 289373840]

約数ペア:

[(1, 289373840), (2, 144686920), (4, 72343460), (5, 57874768), (7, 41339120), (8, 36171730), (10, 28937384), (14, 20669560), (16, 18085865), (20, 14468692), (28, 10334780), (31, 9334640), (35, 8267824), (40, 7234346), (56, 5167390), (62, 4667320), (70, 4133912), (79, 3662960), (80, 3617173), (112, 2583695), (124, 2333660), (140, 2066956), (155, 1866928), (158, 1831480), (211, 1371440), (217, 1333520), (248, 1166830), (280, 1033478), (310, 933464), (316, 915740), (395, 732592), (422, 685720), (434, 666760), (496, 583415), (553, 523280), (560, 516739), (620, 466732), (632, 457870), (790, 366296), (844, 342860), (868, 333380), (1055, 274288), (1085, 266704), (1106, 261640), (1240, 233366), (1264, 228935), (1477, 195920), (1580, 183148), (1688, 171430), (1736, 166690), (2110, 137144), (2170, 133352), (2212, 130820), (2449, 118160), (2480, 116683), (2765, 104656), (2954, 97960), (3160, 91574), (3376, 85715), (3472, 83345), (4220, 68572), (4340, 66676), (4424, 65410), (4898, 59080), (5530, 52328), (5908, 48980), (6320, 45787), (6541, 44240), (7385, 39184), (8440, 34286), (8680, 33338), (8848, 32705), (9796, 29540), (11060, 26164), (11816, 24490), (12245, 23632), (13082, 22120), (14770, 19592), (16669, 17360), (16880, 17143)]