77940840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{649507}}^1$

素因数の和:649521

約数の個数: 32

約数和(自身を含む): 233822880

約数和(自身を除く): 155882040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 649507, 1299014, 1948521, 2598028, 3247535, 3897042, 5196056, 6495070, 7794084, 9742605, 12990140, 15588168, 19485210, 25980280, 38970420, 77940840]

約数ペア:

[(1, 77940840), (2, 38970420), (3, 25980280), (4, 19485210), (5, 15588168), (6, 12990140), (8, 9742605), (10, 7794084), (12, 6495070), (15, 5196056), (20, 3897042), (24, 3247535), (30, 2598028), (40, 1948521), (60, 1299014), (120, 649507)]