278903280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1973}}^1$

素因数の和:2039

約数の個数: 160

約数和(自身を含む): 939939840

約数和(自身を除く): 661036560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 31, 38, 40, 48, 57, 60, 62, 76, 80, 93, 95, 114, 120, 124, 152, 155, 186, 190, 228, 240, 248, 285, 304, 310, 372, 380, 456, 465, 496, 570, 589, 620, 744, 760, 912, 930, 1140, 1178, 1240, 1488, 1520, 1767, 1860, 1973, 2280, 2356, 2480, 2945, 3534, 3720, 3946, 4560, 4712, 5890, 5919, 7068, 7440, 7892, 8835, 9424, 9865, 11780, 11838, 14136, 15784, 17670, 19730, 23560, 23676, 28272, 29595, 31568, 35340, 37487, 39460, 47120, 47352, 59190, 61163, 70680, 74974, 78920, 94704, 112461, 118380, 122326, 141360, 149948, 157840, 183489, 187435, 224922, 236760, 244652, 299896, 305815, 366978, 374870, 449844, 473520, 489304, 562305, 599792, 611630, 733956, 749740, 899688, 917445, 978608, 1124610, 1162097, 1223260, 1467912, 1499480, 1799376, 1834890, 2249220, 2324194, 2446520, 2935824, 2998960, 3486291, 3669780, 4498440, 4648388, 4893040, 5810485, 6972582, 7339560, 8996880, 9296776, 11620970, 13945164, 14679120, 17431455, 18593552, 23241940, 27890328, 34862910, 46483880, 55780656, 69725820, 92967760, 139451640, 278903280]

約数ペア:

[(1, 278903280), (2, 139451640), (3, 92967760), (4, 69725820), (5, 55780656), (6, 46483880), (8, 34862910), (10, 27890328), (12, 23241940), (15, 18593552), (16, 17431455), (19, 14679120), (20, 13945164), (24, 11620970), (30, 9296776), (31, 8996880), (38, 7339560), (40, 6972582), (48, 5810485), (57, 4893040), (60, 4648388), (62, 4498440), (76, 3669780), (80, 3486291), (93, 2998960), (95, 2935824), (114, 2446520), (120, 2324194), (124, 2249220), (152, 1834890), (155, 1799376), (186, 1499480), (190, 1467912), (228, 1223260), (240, 1162097), (248, 1124610), (285, 978608), (304, 917445), (310, 899688), (372, 749740), (380, 733956), (456, 611630), (465, 599792), (496, 562305), (570, 489304), (589, 473520), (620, 449844), (744, 374870), (760, 366978), (912, 305815), (930, 299896), (1140, 244652), (1178, 236760), (1240, 224922), (1488, 187435), (1520, 183489), (1767, 157840), (1860, 149948), (1973, 141360), (2280, 122326), (2356, 118380), (2480, 112461), (2945, 94704), (3534, 78920), (3720, 74974), (3946, 70680), (4560, 61163), (4712, 59190), (5890, 47352), (5919, 47120), (7068, 39460), (7440, 37487), (7892, 35340), (8835, 31568), (9424, 29595), (9865, 28272), (11780, 23676), (11838, 23560), (14136, 19730), (15784, 17670)]