18832520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{653}}^1$

素因数の和:774

約数の個数: 64

約数和(自身を含む): 48971520

約数和(自身を除く): 30139000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 103, 140, 206, 280, 412, 515, 653, 721, 824, 1030, 1306, 1442, 2060, 2612, 2884, 3265, 3605, 4120, 4571, 5224, 5768, 6530, 7210, 9142, 13060, 14420, 18284, 22855, 26120, 28840, 36568, 45710, 67259, 91420, 134518, 182840, 269036, 336295, 470813, 538072, 672590, 941626, 1345180, 1883252, 2354065, 2690360, 3766504, 4708130, 9416260, 18832520]

約数ペア:

[(1, 18832520), (2, 9416260), (4, 4708130), (5, 3766504), (7, 2690360), (8, 2354065), (10, 1883252), (14, 1345180), (20, 941626), (28, 672590), (35, 538072), (40, 470813), (56, 336295), (70, 269036), (103, 182840), (140, 134518), (206, 91420), (280, 67259), (412, 45710), (515, 36568), (653, 28840), (721, 26120), (824, 22855), (1030, 18284), (1306, 14420), (1442, 13060), (2060, 9142), (2612, 7210), (2884, 6530), (3265, 5768), (3605, 5224), (4120, 4571)]