2128332520

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{728881}}^1$

素因数の和:728965

約数の個数: 32

約数和(自身を含む): 4854354120

約数和(自身を除く): 2726021600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 728881, 1457762, 2915524, 3644405, 5831048, 7288810, 14577620, 29155240, 53208313, 106416626, 212833252, 266041565, 425666504, 532083130, 1064166260, 2128332520]

約数ペア:

[(1, 2128332520), (2, 1064166260), (4, 532083130), (5, 425666504), (8, 266041565), (10, 212833252), (20, 106416626), (40, 53208313), (73, 29155240), (146, 14577620), (292, 7288810), (365, 5831048), (584, 3644405), (730, 2915524), (1460, 1457762), (2920, 728881)]