17720654848

素因数分解:

$2^{10}\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{18749}}^1$

素因数の和:18853

約数の個数: 88

約数和(自身を含む): 38688300000

約数和(自身を除く): 20967645152

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 71, 104, 128, 142, 208, 256, 284, 416, 512, 568, 832, 923, 1024, 1136, 1664, 1846, 2272, 3328, 3692, 4544, 6656, 7384, 9088, 13312, 14768, 18176, 18749, 29536, 36352, 37498, 59072, 72704, 74996, 118144, 149992, 236288, 243737, 299984, 472576, 487474, 599968, 945152, 974948, 1199936, 1331179, 1949896, 2399872, 2662358, 3899792, 4799744, 5324716, 7799584, 9599488, 10649432, 15599168, 17305327, 19198976, 21298864, 31198336, 34610654, 42597728, 62396672, 69221308, 85195456, 124793344, 138442616, 170390912, 249586688, 276885232, 340781824, 553770464, 681563648, 1107540928, 1363127296, 2215081856, 4430163712, 8860327424, 17720654848]

約数ペア:

[(1, 17720654848), (2, 8860327424), (4, 4430163712), (8, 2215081856), (13, 1363127296), (16, 1107540928), (26, 681563648), (32, 553770464), (52, 340781824), (64, 276885232), (71, 249586688), (104, 170390912), (128, 138442616), (142, 124793344), (208, 85195456), (256, 69221308), (284, 62396672), (416, 42597728), (512, 34610654), (568, 31198336), (832, 21298864), (923, 19198976), (1024, 17305327), (1136, 15599168), (1664, 10649432), (1846, 9599488), (2272, 7799584), (3328, 5324716), (3692, 4799744), (4544, 3899792), (6656, 2662358), (7384, 2399872), (9088, 1949896), (13312, 1331179), (14768, 1199936), (18176, 974948), (18749, 945152), (29536, 599968), (36352, 487474), (37498, 472576), (59072, 299984), (72704, 243737), (74996, 236288), (118144, 149992)]