157857840

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{31321}}^1$

素因数の和:31347

約数の個数: 120

約数和(自身を含む): 605892768

約数和(自身を除く): 448034928

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 31321, 62642, 93963, 125284, 156605, 187926, 219247, 250568, 281889, 313210, 375852, 438494, 469815, 501136, 563778, 626420, 657741, 751704, 876988, 939630, 1096235, 1127556, 1252840, 1315482, 1409445, 1503408, 1753976, 1879260, 1973223, 2192470, 2255112, 2505680, 2630964, 2818890, 3288705, 3507952, 3758520, 3946446, 4384940, 4510224, 5261928, 5637780, 6577410, 7517040, 7892892, 8769880, 9866115, 10523856, 11275560, 13154820, 15785784, 17539760, 19732230, 22551120, 26309640, 31571568, 39464460, 52619280, 78928920, 157857840]

約数ペア:

[(1, 157857840), (2, 78928920), (3, 52619280), (4, 39464460), (5, 31571568), (6, 26309640), (7, 22551120), (8, 19732230), (9, 17539760), (10, 15785784), (12, 13154820), (14, 11275560), (15, 10523856), (16, 9866115), (18, 8769880), (20, 7892892), (21, 7517040), (24, 6577410), (28, 5637780), (30, 5261928), (35, 4510224), (36, 4384940), (40, 3946446), (42, 3758520), (45, 3507952), (48, 3288705), (56, 2818890), (60, 2630964), (63, 2505680), (70, 2255112), (72, 2192470), (80, 1973223), (84, 1879260), (90, 1753976), (105, 1503408), (112, 1409445), (120, 1315482), (126, 1252840), (140, 1127556), (144, 1096235), (168, 939630), (180, 876988), (210, 751704), (240, 657741), (252, 626420), (280, 563778), (315, 501136), (336, 469815), (360, 438494), (420, 375852), (504, 313210), (560, 281889), (630, 250568), (720, 219247), (840, 187926), (1008, 156605), (1260, 125284), (1680, 93963), (2520, 62642), (5040, 31321)]