20228960

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^2\times {\mathrm{239}}^1$

素因数の和:300

約数の個数: 72

約数和(自身を含む): 50168160

約数和(自身を除く): 29939200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 115, 160, 184, 230, 239, 368, 460, 478, 529, 736, 920, 956, 1058, 1195, 1840, 1912, 2116, 2390, 2645, 3680, 3824, 4232, 4780, 5290, 5497, 7648, 8464, 9560, 10580, 10994, 16928, 19120, 21160, 21988, 27485, 38240, 42320, 43976, 54970, 84640, 87952, 109940, 126431, 175904, 219880, 252862, 439760, 505724, 632155, 879520, 1011448, 1264310, 2022896, 2528620, 4045792, 5057240, 10114480, 20228960]

約数ペア:

[(1, 20228960), (2, 10114480), (4, 5057240), (5, 4045792), (8, 2528620), (10, 2022896), (16, 1264310), (20, 1011448), (23, 879520), (32, 632155), (40, 505724), (46, 439760), (80, 252862), (92, 219880), (115, 175904), (160, 126431), (184, 109940), (230, 87952), (239, 84640), (368, 54970), (460, 43976), (478, 42320), (529, 38240), (736, 27485), (920, 21988), (956, 21160), (1058, 19120), (1195, 16928), (1840, 10994), (1912, 10580), (2116, 9560), (2390, 8464), (2645, 7648), (3680, 5497), (3824, 5290), (4232, 4780)]