209629840

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{1009}}^1$

素因数の和:1089

約数の個数: 120

約数和(自身を含む): 578233080

約数和(自身を除く): 368603240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 53, 56, 70, 80, 98, 106, 112, 140, 196, 212, 245, 265, 280, 371, 392, 424, 490, 530, 560, 742, 784, 848, 980, 1009, 1060, 1484, 1855, 1960, 2018, 2120, 2597, 2968, 3710, 3920, 4036, 4240, 5045, 5194, 5936, 7063, 7420, 8072, 10090, 10388, 12985, 14126, 14840, 16144, 20180, 20776, 25970, 28252, 29680, 35315, 40360, 41552, 49441, 51940, 53477, 56504, 70630, 80720, 98882, 103880, 106954, 113008, 141260, 197764, 207760, 213908, 247205, 267385, 282520, 374339, 395528, 427816, 494410, 534770, 565040, 748678, 791056, 855632, 988820, 1069540, 1497356, 1871695, 1977640, 2139080, 2620373, 2994712, 3743390, 3955280, 4278160, 5240746, 5989424, 7486780, 10481492, 13101865, 14973560, 20962984, 26203730, 29947120, 41925968, 52407460, 104814920, 209629840]

約数ペア:

[(1, 209629840), (2, 104814920), (4, 52407460), (5, 41925968), (7, 29947120), (8, 26203730), (10, 20962984), (14, 14973560), (16, 13101865), (20, 10481492), (28, 7486780), (35, 5989424), (40, 5240746), (49, 4278160), (53, 3955280), (56, 3743390), (70, 2994712), (80, 2620373), (98, 2139080), (106, 1977640), (112, 1871695), (140, 1497356), (196, 1069540), (212, 988820), (245, 855632), (265, 791056), (280, 748678), (371, 565040), (392, 534770), (424, 494410), (490, 427816), (530, 395528), (560, 374339), (742, 282520), (784, 267385), (848, 247205), (980, 213908), (1009, 207760), (1060, 197764), (1484, 141260), (1855, 113008), (1960, 106954), (2018, 103880), (2120, 98882), (2597, 80720), (2968, 70630), (3710, 56504), (3920, 53477), (4036, 51940), (4240, 49441), (5045, 41552), (5194, 40360), (5936, 35315), (7063, 29680), (7420, 28252), (8072, 25970), (10090, 20776), (10388, 20180), (12985, 16144), (14126, 14840)]