20199783880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{457}}^1\times {\mathrm{3061}}^1$

素因数の和:3567

約数の個数: 96

約数和(自身を含む): 48088158840

約数和(自身を除く): 27888374960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 457, 722, 760, 914, 1444, 1805, 1828, 2285, 2888, 3061, 3610, 3656, 4570, 6122, 7220, 8683, 9140, 12244, 14440, 15305, 17366, 18280, 24488, 30610, 34732, 43415, 58159, 61220, 69464, 86830, 116318, 122440, 164977, 173660, 232636, 290795, 329954, 347320, 465272, 581590, 659908, 824885, 1105021, 1163180, 1319816, 1398877, 1649770, 2210042, 2326360, 2797754, 3299540, 4420084, 5525105, 5595508, 6599080, 6994385, 8840168, 11050210, 11191016, 13988770, 22100420, 26578663, 27977540, 44200840, 53157326, 55955080, 106314652, 132893315, 212629304, 265786630, 504994597, 531573260, 1009989194, 1063146520, 2019978388, 2524972985, 4039956776, 5049945970, 10099891940, 20199783880]

約数ペア:

[(1, 20199783880), (2, 10099891940), (4, 5049945970), (5, 4039956776), (8, 2524972985), (10, 2019978388), (19, 1063146520), (20, 1009989194), (38, 531573260), (40, 504994597), (76, 265786630), (95, 212629304), (152, 132893315), (190, 106314652), (361, 55955080), (380, 53157326), (457, 44200840), (722, 27977540), (760, 26578663), (914, 22100420), (1444, 13988770), (1805, 11191016), (1828, 11050210), (2285, 8840168), (2888, 6994385), (3061, 6599080), (3610, 5595508), (3656, 5525105), (4570, 4420084), (6122, 3299540), (7220, 2797754), (8683, 2326360), (9140, 2210042), (12244, 1649770), (14440, 1398877), (15305, 1319816), (17366, 1163180), (18280, 1105021), (24488, 824885), (30610, 659908), (34732, 581590), (43415, 465272), (58159, 347320), (61220, 329954), (69464, 290795), (86830, 232636), (116318, 173660), (122440, 164977)]