257081970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{2767}}^1$

素因数の和:2959

約数の個数: 64

約数和(自身を含む): 653690880

約数和(自身を除く): 396608910

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 95, 114, 163, 190, 285, 326, 489, 570, 815, 978, 1630, 2445, 2767, 3097, 4890, 5534, 6194, 8301, 9291, 13835, 15485, 16602, 18582, 27670, 30970, 41505, 46455, 52573, 83010, 92910, 105146, 157719, 262865, 315438, 451021, 525730, 788595, 902042, 1353063, 1577190, 2255105, 2706126, 4510210, 6765315, 8569399, 13530630, 17138798, 25708197, 42846995, 51416394, 85693990, 128540985, 257081970]

約数ペア:

[(1, 257081970), (2, 128540985), (3, 85693990), (5, 51416394), (6, 42846995), (10, 25708197), (15, 17138798), (19, 13530630), (30, 8569399), (38, 6765315), (57, 4510210), (95, 2706126), (114, 2255105), (163, 1577190), (190, 1353063), (285, 902042), (326, 788595), (489, 525730), (570, 451021), (815, 315438), (978, 262865), (1630, 157719), (2445, 105146), (2767, 92910), (3097, 83010), (4890, 52573), (5534, 46455), (6194, 41505), (8301, 30970), (9291, 27670), (13835, 18582), (15485, 16602)]