28015940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{619}}^1$

素因数の和:732

約数の個数: 48

約数和(自身を含む): 61662720

約数和(自身を除く): 33646780

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 73, 124, 146, 155, 292, 310, 365, 619, 620, 730, 1238, 1460, 2263, 2476, 3095, 4526, 6190, 9052, 11315, 12380, 19189, 22630, 38378, 45187, 45260, 76756, 90374, 95945, 180748, 191890, 225935, 383780, 451870, 903740, 1400797, 2801594, 5603188, 7003985, 14007970, 28015940]

約数ペア:

[(1, 28015940), (2, 14007970), (4, 7003985), (5, 5603188), (10, 2801594), (20, 1400797), (31, 903740), (62, 451870), (73, 383780), (124, 225935), (146, 191890), (155, 180748), (292, 95945), (310, 90374), (365, 76756), (619, 45260), (620, 45187), (730, 38378), (1238, 22630), (1460, 19189), (2263, 12380), (2476, 11315), (3095, 9052), (4526, 6190)]