28913940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{859}}^1$

素因数の和:902

約数の個数: 144

約数和(自身を含む): 101424960

約数和(自身を除く): 72511020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 17, 18, 20, 22, 30, 33, 34, 36, 44, 45, 51, 55, 60, 66, 68, 85, 90, 99, 102, 110, 132, 153, 165, 170, 180, 187, 198, 204, 220, 255, 306, 330, 340, 374, 396, 495, 510, 561, 612, 660, 748, 765, 859, 935, 990, 1020, 1122, 1530, 1683, 1718, 1870, 1980, 2244, 2577, 2805, 3060, 3366, 3436, 3740, 4295, 5154, 5610, 6732, 7731, 8415, 8590, 9449, 10308, 11220, 12885, 14603, 15462, 16830, 17180, 18898, 25770, 28347, 29206, 30924, 33660, 37796, 38655, 43809, 47245, 51540, 56694, 58412, 73015, 77310, 85041, 87618, 94490, 113388, 131427, 141735, 146030, 154620, 160633, 170082, 175236, 188980, 219045, 262854, 283470, 292060, 321266, 340164, 425205, 438090, 481899, 525708, 566940, 642532, 657135, 803165, 850410, 876180, 963798, 1314270, 1445697, 1606330, 1700820, 1927596, 2409495, 2628540, 2891394, 3212660, 4818990, 5782788, 7228485, 9637980, 14456970, 28913940]

約数ペア:

[(1, 28913940), (2, 14456970), (3, 9637980), (4, 7228485), (5, 5782788), (6, 4818990), (9, 3212660), (10, 2891394), (11, 2628540), (12, 2409495), (15, 1927596), (17, 1700820), (18, 1606330), (20, 1445697), (22, 1314270), (30, 963798), (33, 876180), (34, 850410), (36, 803165), (44, 657135), (45, 642532), (51, 566940), (55, 525708), (60, 481899), (66, 438090), (68, 425205), (85, 340164), (90, 321266), (99, 292060), (102, 283470), (110, 262854), (132, 219045), (153, 188980), (165, 175236), (170, 170082), (180, 160633), (187, 154620), (198, 146030), (204, 141735), (220, 131427), (255, 113388), (306, 94490), (330, 87618), (340, 85041), (374, 77310), (396, 73015), (495, 58412), (510, 56694), (561, 51540), (612, 47245), (660, 43809), (748, 38655), (765, 37796), (859, 33660), (935, 30924), (990, 29206), (1020, 28347), (1122, 25770), (1530, 18898), (1683, 17180), (1718, 16830), (1870, 15462), (1980, 14603), (2244, 12885), (2577, 11220), (2805, 10308), (3060, 9449), (3366, 8590), (3436, 8415), (3740, 7731), (4295, 6732), (5154, 5610)]