840589180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{13163}}^1$

素因数の和:13306

約数の個数: 48

約数和(自身を含む): 1840011264

約数和(自身を除く): 999422084

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 103, 124, 155, 206, 310, 412, 515, 620, 1030, 2060, 3193, 6386, 12772, 13163, 15965, 26326, 31930, 52652, 63860, 65815, 131630, 263260, 408053, 816106, 1355789, 1632212, 2040265, 2711578, 4080530, 5423156, 6778945, 8161060, 13557890, 27115780, 42029459, 84058918, 168117836, 210147295, 420294590, 840589180]

約数ペア:

[(1, 840589180), (2, 420294590), (4, 210147295), (5, 168117836), (10, 84058918), (20, 42029459), (31, 27115780), (62, 13557890), (103, 8161060), (124, 6778945), (155, 5423156), (206, 4080530), (310, 2711578), (412, 2040265), (515, 1632212), (620, 1355789), (1030, 816106), (2060, 408053), (3193, 263260), (6386, 131630), (12772, 65815), (13163, 63860), (15965, 52652), (26326, 31930)]