278979890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{739}}^1\times {\mathrm{5393}}^1$

素因数の和:6146

約数の個数: 32

約数和(自身を含む): 574784640

約数和(自身を除く): 295804750

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 739, 1478, 3695, 5173, 5393, 7390, 10346, 10786, 25865, 26965, 37751, 51730, 53930, 75502, 188755, 377510, 3985427, 7970854, 19927135, 27897989, 39854270, 55795978, 139489945, 278979890]

約数ペア:

[(1, 278979890), (2, 139489945), (5, 55795978), (7, 39854270), (10, 27897989), (14, 19927135), (35, 7970854), (70, 3985427), (739, 377510), (1478, 188755), (3695, 75502), (5173, 53930), (5393, 51730), (7390, 37751), (10346, 26965), (10786, 25865)]