278456880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2879}}^1$

素因数の和:2939

約数の個数: 160

約数和(自身を含む): 959938560

約数和(自身を除く): 681481680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 31, 39, 40, 48, 52, 60, 62, 65, 78, 80, 93, 104, 120, 124, 130, 155, 156, 186, 195, 208, 240, 248, 260, 310, 312, 372, 390, 403, 465, 496, 520, 620, 624, 744, 780, 806, 930, 1040, 1209, 1240, 1488, 1560, 1612, 1860, 2015, 2418, 2480, 2879, 3120, 3224, 3720, 4030, 4836, 5758, 6045, 6448, 7440, 8060, 8637, 9672, 11516, 12090, 14395, 16120, 17274, 19344, 23032, 24180, 28790, 32240, 34548, 37427, 43185, 46064, 48360, 57580, 69096, 74854, 86370, 89249, 96720, 112281, 115160, 138192, 149708, 172740, 178498, 187135, 224562, 230320, 267747, 299416, 345480, 356996, 374270, 446245, 449124, 535494, 561405, 598832, 690960, 713992, 748540, 892490, 898248, 1070988, 1122810, 1160237, 1338735, 1427984, 1497080, 1784980, 1796496, 2141976, 2245620, 2320474, 2677470, 2994160, 3480711, 3569960, 4283952, 4491240, 4640948, 5354940, 5801185, 6961422, 7139920, 8982480, 9281896, 10709880, 11602370, 13922844, 17403555, 18563792, 21419760, 23204740, 27845688, 34807110, 46409480, 55691376, 69614220, 92818960, 139228440, 278456880]

約数ペア:

[(1, 278456880), (2, 139228440), (3, 92818960), (4, 69614220), (5, 55691376), (6, 46409480), (8, 34807110), (10, 27845688), (12, 23204740), (13, 21419760), (15, 18563792), (16, 17403555), (20, 13922844), (24, 11602370), (26, 10709880), (30, 9281896), (31, 8982480), (39, 7139920), (40, 6961422), (48, 5801185), (52, 5354940), (60, 4640948), (62, 4491240), (65, 4283952), (78, 3569960), (80, 3480711), (93, 2994160), (104, 2677470), (120, 2320474), (124, 2245620), (130, 2141976), (155, 1796496), (156, 1784980), (186, 1497080), (195, 1427984), (208, 1338735), (240, 1160237), (248, 1122810), (260, 1070988), (310, 898248), (312, 892490), (372, 748540), (390, 713992), (403, 690960), (465, 598832), (496, 561405), (520, 535494), (620, 449124), (624, 446245), (744, 374270), (780, 356996), (806, 345480), (930, 299416), (1040, 267747), (1209, 230320), (1240, 224562), (1488, 187135), (1560, 178498), (1612, 172740), (1860, 149708), (2015, 138192), (2418, 115160), (2480, 112281), (2879, 96720), (3120, 89249), (3224, 86370), (3720, 74854), (4030, 69096), (4836, 57580), (5758, 48360), (6045, 46064), (6448, 43185), (7440, 37427), (8060, 34548), (8637, 32240), (9672, 28790), (11516, 24180), (12090, 23032), (14395, 19344), (16120, 17274)]