85707860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{4603}}^1$

素因数の和:4645

約数の個数: 72

約数和(自身を含む): 220439520

約数和(自身を除く): 134731660

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 140, 190, 196, 245, 266, 380, 490, 532, 665, 931, 980, 1330, 1862, 2660, 3724, 4603, 4655, 9206, 9310, 18412, 18620, 23015, 32221, 46030, 64442, 87457, 92060, 128884, 161105, 174914, 225547, 322210, 349828, 437285, 451094, 612199, 644420, 874570, 902188, 1127735, 1224398, 1749140, 2255470, 2448796, 3060995, 4285393, 4510940, 6121990, 8570786, 12243980, 17141572, 21426965, 42853930, 85707860]

約数ペア:

[(1, 85707860), (2, 42853930), (4, 21426965), (5, 17141572), (7, 12243980), (10, 8570786), (14, 6121990), (19, 4510940), (20, 4285393), (28, 3060995), (35, 2448796), (38, 2255470), (49, 1749140), (70, 1224398), (76, 1127735), (95, 902188), (98, 874570), (133, 644420), (140, 612199), (190, 451094), (196, 437285), (245, 349828), (266, 322210), (380, 225547), (490, 174914), (532, 161105), (665, 128884), (931, 92060), (980, 87457), (1330, 64442), (1862, 46030), (2660, 32221), (3724, 23015), (4603, 18620), (4655, 18412), (9206, 9310)]