31430560

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{211}}^1$

素因数の和:259

約数の個数: 144

約数和(自身を含む): 91355040

約数和(自身を除く): 59924480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 49, 56, 70, 76, 80, 95, 98, 112, 133, 140, 152, 160, 190, 196, 211, 224, 245, 266, 280, 304, 380, 392, 422, 490, 532, 560, 608, 665, 760, 784, 844, 931, 980, 1055, 1064, 1120, 1330, 1477, 1520, 1568, 1688, 1862, 1960, 2110, 2128, 2660, 2954, 3040, 3376, 3724, 3920, 4009, 4220, 4256, 4655, 5320, 5908, 6752, 7385, 7448, 7840, 8018, 8440, 9310, 10339, 10640, 11816, 14770, 14896, 16036, 16880, 18620, 20045, 20678, 21280, 23632, 28063, 29540, 29792, 32072, 33760, 37240, 40090, 41356, 47264, 51695, 56126, 59080, 64144, 74480, 80180, 82712, 103390, 112252, 118160, 128288, 140315, 148960, 160360, 165424, 196441, 206780, 224504, 236320, 280630, 320720, 330848, 392882, 413560, 449008, 561260, 641440, 785764, 827120, 898016, 982205, 1122520, 1571528, 1654240, 1964410, 2245040, 3143056, 3928820, 4490080, 6286112, 7857640, 15715280, 31430560]

約数ペア:

[(1, 31430560), (2, 15715280), (4, 7857640), (5, 6286112), (7, 4490080), (8, 3928820), (10, 3143056), (14, 2245040), (16, 1964410), (19, 1654240), (20, 1571528), (28, 1122520), (32, 982205), (35, 898016), (38, 827120), (40, 785764), (49, 641440), (56, 561260), (70, 449008), (76, 413560), (80, 392882), (95, 330848), (98, 320720), (112, 280630), (133, 236320), (140, 224504), (152, 206780), (160, 196441), (190, 165424), (196, 160360), (211, 148960), (224, 140315), (245, 128288), (266, 118160), (280, 112252), (304, 103390), (380, 82712), (392, 80180), (422, 74480), (490, 64144), (532, 59080), (560, 56126), (608, 51695), (665, 47264), (760, 41356), (784, 40090), (844, 37240), (931, 33760), (980, 32072), (1055, 29792), (1064, 29540), (1120, 28063), (1330, 23632), (1477, 21280), (1520, 20678), (1568, 20045), (1688, 18620), (1862, 16880), (1960, 16036), (2110, 14896), (2128, 14770), (2660, 11816), (2954, 10640), (3040, 10339), (3376, 9310), (3724, 8440), (3920, 8018), (4009, 7840), (4220, 7448), (4256, 7385), (4655, 6752), (5320, 5908)]