408907240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1460383}}^1$

素因数の和:1460401

約数の個数: 32

約数和(自身を含む): 1051476480

約数和(自身を除く): 642569240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1460383, 2920766, 5841532, 7301915, 10222681, 11683064, 14603830, 20445362, 29207660, 40890724, 51113405, 58415320, 81781448, 102226810, 204453620, 408907240]

約数ペア:

[(1, 408907240), (2, 204453620), (4, 102226810), (5, 81781448), (7, 58415320), (8, 51113405), (10, 40890724), (14, 29207660), (20, 20445362), (28, 14603830), (35, 11683064), (40, 10222681), (56, 7301915), (70, 5841532), (140, 2920766), (280, 1460383)]