31577840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1$

素因数の和:175

約数の個数: 160

約数和(自身を含む): 92565504

約数和(自身を除く): 60987664

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 31, 34, 35, 40, 56, 62, 68, 70, 80, 85, 107, 112, 119, 124, 136, 140, 155, 170, 214, 217, 238, 248, 272, 280, 310, 340, 428, 434, 476, 496, 527, 535, 560, 595, 620, 680, 749, 856, 868, 952, 1054, 1070, 1085, 1190, 1240, 1360, 1498, 1712, 1736, 1819, 1904, 2108, 2140, 2170, 2380, 2480, 2635, 2996, 3317, 3472, 3638, 3689, 3745, 4216, 4280, 4340, 4760, 5270, 5992, 6634, 7276, 7378, 7490, 8432, 8560, 8680, 9095, 9520, 10540, 11984, 12733, 13268, 14552, 14756, 14980, 16585, 17360, 18190, 18445, 21080, 23219, 25466, 26536, 29104, 29512, 29960, 33170, 36380, 36890, 42160, 46438, 50932, 53072, 56389, 59024, 59920, 63665, 66340, 72760, 73780, 92876, 101864, 112778, 116095, 127330, 132680, 145520, 147560, 185752, 203728, 225556, 232190, 254660, 265360, 281945, 295120, 371504, 394723, 451112, 464380, 509320, 563890, 789446, 902224, 928760, 1018640, 1127780, 1578892, 1857520, 1973615, 2255560, 3157784, 3947230, 4511120, 6315568, 7894460, 15788920, 31577840]

約数ペア:

[(1, 31577840), (2, 15788920), (4, 7894460), (5, 6315568), (7, 4511120), (8, 3947230), (10, 3157784), (14, 2255560), (16, 1973615), (17, 1857520), (20, 1578892), (28, 1127780), (31, 1018640), (34, 928760), (35, 902224), (40, 789446), (56, 563890), (62, 509320), (68, 464380), (70, 451112), (80, 394723), (85, 371504), (107, 295120), (112, 281945), (119, 265360), (124, 254660), (136, 232190), (140, 225556), (155, 203728), (170, 185752), (214, 147560), (217, 145520), (238, 132680), (248, 127330), (272, 116095), (280, 112778), (310, 101864), (340, 92876), (428, 73780), (434, 72760), (476, 66340), (496, 63665), (527, 59920), (535, 59024), (560, 56389), (595, 53072), (620, 50932), (680, 46438), (749, 42160), (856, 36890), (868, 36380), (952, 33170), (1054, 29960), (1070, 29512), (1085, 29104), (1190, 26536), (1240, 25466), (1360, 23219), (1498, 21080), (1712, 18445), (1736, 18190), (1819, 17360), (1904, 16585), (2108, 14980), (2140, 14756), (2170, 14552), (2380, 13268), (2480, 12733), (2635, 11984), (2996, 10540), (3317, 9520), (3472, 9095), (3638, 8680), (3689, 8560), (3745, 8432), (4216, 7490), (4280, 7378), (4340, 7276), (4760, 6634), (5270, 5992)]