54347140

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1\times {\mathrm{347}}^1$

素因数の和:588

約数の個数: 48

約数和(自身を含む): 117863424

約数和(自身を除く): 63516284

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 191, 205, 347, 382, 410, 694, 764, 820, 955, 1388, 1735, 1910, 3470, 3820, 6940, 7831, 14227, 15662, 28454, 31324, 39155, 56908, 66277, 71135, 78310, 132554, 142270, 156620, 265108, 284540, 331385, 662770, 1325540, 2717357, 5434714, 10869428, 13586785, 27173570, 54347140]

約数ペア:

[(1, 54347140), (2, 27173570), (4, 13586785), (5, 10869428), (10, 5434714), (20, 2717357), (41, 1325540), (82, 662770), (164, 331385), (191, 284540), (205, 265108), (347, 156620), (382, 142270), (410, 132554), (694, 78310), (764, 71135), (820, 66277), (955, 56908), (1388, 39155), (1735, 31324), (1910, 28454), (3470, 15662), (3820, 14227), (6940, 7831)]