20020235320

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{223}}^1\times {\mathrm{11393}}^1$

素因数の和:11824

約数の個数: 64

約数和(自身を含む): 45481201920

約数和(自身を除く): 25460966600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 223, 394, 446, 788, 892, 985, 1115, 1576, 1784, 1970, 2230, 3940, 4460, 7880, 8920, 11393, 22786, 43931, 45572, 56965, 87862, 91144, 113930, 175724, 219655, 227860, 351448, 439310, 455720, 878620, 1757240, 2244421, 2540639, 4488842, 5081278, 8977684, 10162556, 11222105, 12703195, 17955368, 20325112, 22444210, 25406390, 44888420, 50812780, 89776840, 101625560, 500505883, 1001011766, 2002023532, 2502529415, 4004047064, 5005058830, 10010117660, 20020235320]

約数ペア:

[(1, 20020235320), (2, 10010117660), (4, 5005058830), (5, 4004047064), (8, 2502529415), (10, 2002023532), (20, 1001011766), (40, 500505883), (197, 101625560), (223, 89776840), (394, 50812780), (446, 44888420), (788, 25406390), (892, 22444210), (985, 20325112), (1115, 17955368), (1576, 12703195), (1784, 11222105), (1970, 10162556), (2230, 8977684), (3940, 5081278), (4460, 4488842), (7880, 2540639), (8920, 2244421), (11393, 1757240), (22786, 878620), (43931, 455720), (45572, 439310), (56965, 351448), (87862, 227860), (91144, 219655), (113930, 175724)]