40869920

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{401}}^1$

素因数の和:443

約数の個数: 144

約数和(自身を含む): 121260888

約数和(自身を除く): 80390968

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 56, 65, 70, 80, 91, 98, 104, 112, 130, 140, 160, 182, 196, 208, 224, 245, 260, 280, 364, 392, 401, 416, 455, 490, 520, 560, 637, 728, 784, 802, 910, 980, 1040, 1120, 1274, 1456, 1568, 1604, 1820, 1960, 2005, 2080, 2548, 2807, 2912, 3185, 3208, 3640, 3920, 4010, 5096, 5213, 5614, 6370, 6416, 7280, 7840, 8020, 10192, 10426, 11228, 12740, 12832, 14035, 14560, 16040, 19649, 20384, 20852, 22456, 25480, 26065, 28070, 32080, 36491, 39298, 41704, 44912, 50960, 52130, 56140, 64160, 72982, 78596, 83408, 89824, 98245, 101920, 104260, 112280, 145964, 157192, 166816, 182455, 196490, 208520, 224560, 255437, 291928, 314384, 364910, 392980, 417040, 449120, 510874, 583856, 628768, 729820, 785960, 834080, 1021748, 1167712, 1277185, 1459640, 1571920, 2043496, 2554370, 2919280, 3143840, 4086992, 5108740, 5838560, 8173984, 10217480, 20434960, 40869920]

約数ペア:

[(1, 40869920), (2, 20434960), (4, 10217480), (5, 8173984), (7, 5838560), (8, 5108740), (10, 4086992), (13, 3143840), (14, 2919280), (16, 2554370), (20, 2043496), (26, 1571920), (28, 1459640), (32, 1277185), (35, 1167712), (40, 1021748), (49, 834080), (52, 785960), (56, 729820), (65, 628768), (70, 583856), (80, 510874), (91, 449120), (98, 417040), (104, 392980), (112, 364910), (130, 314384), (140, 291928), (160, 255437), (182, 224560), (196, 208520), (208, 196490), (224, 182455), (245, 166816), (260, 157192), (280, 145964), (364, 112280), (392, 104260), (401, 101920), (416, 98245), (455, 89824), (490, 83408), (520, 78596), (560, 72982), (637, 64160), (728, 56140), (784, 52130), (802, 50960), (910, 44912), (980, 41704), (1040, 39298), (1120, 36491), (1274, 32080), (1456, 28070), (1568, 26065), (1604, 25480), (1820, 22456), (1960, 20852), (2005, 20384), (2080, 19649), (2548, 16040), (2807, 14560), (2912, 14035), (3185, 12832), (3208, 12740), (3640, 11228), (3920, 10426), (4010, 10192), (5096, 8020), (5213, 7840), (5614, 7280), (6370, 6416)]