18898240

素因数分解:

$2^6\times 5^1\times {\mathrm{73}}^1\times {\mathrm{809}}^1$

素因数の和:899

約数の個数: 56

約数和(自身を含む): 45674280

約数和(自身を除く): 26776040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 73, 80, 146, 160, 292, 320, 365, 584, 730, 809, 1168, 1460, 1618, 2336, 2920, 3236, 4045, 4672, 5840, 6472, 8090, 11680, 12944, 16180, 23360, 25888, 32360, 51776, 59057, 64720, 118114, 129440, 236228, 258880, 295285, 472456, 590570, 944912, 1181140, 1889824, 2362280, 3779648, 4724560, 9449120, 18898240]

約数ペア:

[(1, 18898240), (2, 9449120), (4, 4724560), (5, 3779648), (8, 2362280), (10, 1889824), (16, 1181140), (20, 944912), (32, 590570), (40, 472456), (64, 295285), (73, 258880), (80, 236228), (146, 129440), (160, 118114), (292, 64720), (320, 59057), (365, 51776), (584, 32360), (730, 25888), (809, 23360), (1168, 16180), (1460, 12944), (1618, 11680), (2336, 8090), (2920, 6472), (3236, 5840), (4045, 4672)]