390993960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{465469}}^1$

素因数の和:465490

約数の個数: 64

約数和(自身を含む): 1340553600

約数和(自身を除く): 949559640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 465469, 930938, 1396407, 1861876, 2327345, 2792814, 3258283, 3723752, 4654690, 5585628, 6516566, 6982035, 9309380, 9774849, 11171256, 13033132, 13964070, 16291415, 18618760, 19549698, 26066264, 27928140, 32582830, 39099396, 48874245, 55856280, 65165660, 78198792, 97748490, 130331320, 195496980, 390993960]

約数ペア:

[(1, 390993960), (2, 195496980), (3, 130331320), (4, 97748490), (5, 78198792), (6, 65165660), (7, 55856280), (8, 48874245), (10, 39099396), (12, 32582830), (14, 27928140), (15, 26066264), (20, 19549698), (21, 18618760), (24, 16291415), (28, 13964070), (30, 13033132), (35, 11171256), (40, 9774849), (42, 9309380), (56, 6982035), (60, 6516566), (70, 5585628), (84, 4654690), (105, 3723752), (120, 3258283), (140, 2792814), (168, 2327345), (210, 1861876), (280, 1396407), (420, 930938), (840, 465469)]