64216640

素因数分解:

$2^6\times 5^1\times {\mathrm{73}}^1\times {\mathrm{2749}}^1$

素因数の和:2839

約数の個数: 56

約数和(自身を含む): 155067000

約数和(自身を除く): 90850360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 73, 80, 146, 160, 292, 320, 365, 584, 730, 1168, 1460, 2336, 2749, 2920, 4672, 5498, 5840, 10996, 11680, 13745, 21992, 23360, 27490, 43984, 54980, 87968, 109960, 175936, 200677, 219920, 401354, 439840, 802708, 879680, 1003385, 1605416, 2006770, 3210832, 4013540, 6421664, 8027080, 12843328, 16054160, 32108320, 64216640]

約数ペア:

[(1, 64216640), (2, 32108320), (4, 16054160), (5, 12843328), (8, 8027080), (10, 6421664), (16, 4013540), (20, 3210832), (32, 2006770), (40, 1605416), (64, 1003385), (73, 879680), (80, 802708), (146, 439840), (160, 401354), (292, 219920), (320, 200677), (365, 175936), (584, 109960), (730, 87968), (1168, 54980), (1460, 43984), (2336, 27490), (2749, 23360), (2920, 21992), (4672, 13745), (5498, 11680), (5840, 10996)]