1320447640

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{7817}}^1$

素因数の和:7972

約数の個数: 64

約数和(自身を含む): 3073412160

約数和(自身を除く): 1752964520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 103, 164, 205, 206, 328, 410, 412, 515, 820, 824, 1030, 1640, 2060, 4120, 4223, 7817, 8446, 15634, 16892, 21115, 31268, 33784, 39085, 42230, 62536, 78170, 84460, 156340, 168920, 312680, 320497, 640994, 805151, 1281988, 1602485, 1610302, 2563976, 3204970, 3220604, 4025755, 6409940, 6441208, 8051510, 12819880, 16103020, 32206040, 33011191, 66022382, 132044764, 165055955, 264089528, 330111910, 660223820, 1320447640]

約数ペア:

[(1, 1320447640), (2, 660223820), (4, 330111910), (5, 264089528), (8, 165055955), (10, 132044764), (20, 66022382), (40, 33011191), (41, 32206040), (82, 16103020), (103, 12819880), (164, 8051510), (205, 6441208), (206, 6409940), (328, 4025755), (410, 3220604), (412, 3204970), (515, 2563976), (820, 1610302), (824, 1602485), (1030, 1281988), (1640, 805151), (2060, 640994), (4120, 320497), (4223, 312680), (7817, 168920), (8446, 156340), (15634, 84460), (16892, 78170), (21115, 62536), (31268, 42230), (33784, 39085)]