20474460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{6691}}^1$

素因数の和:6723

約数の個数: 72

約数和(自身を含む): 65768976

約数和(自身を除く): 45294516

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 306, 340, 510, 612, 765, 1020, 1530, 3060, 6691, 13382, 20073, 26764, 33455, 40146, 60219, 66910, 80292, 100365, 113747, 120438, 133820, 200730, 227494, 240876, 301095, 341241, 401460, 454988, 568735, 602190, 682482, 1023723, 1137470, 1204380, 1364964, 1706205, 2047446, 2274940, 3412410, 4094892, 5118615, 6824820, 10237230, 20474460]

約数ペア:

[(1, 20474460), (2, 10237230), (3, 6824820), (4, 5118615), (5, 4094892), (6, 3412410), (9, 2274940), (10, 2047446), (12, 1706205), (15, 1364964), (17, 1204380), (18, 1137470), (20, 1023723), (30, 682482), (34, 602190), (36, 568735), (45, 454988), (51, 401460), (60, 341241), (68, 301095), (85, 240876), (90, 227494), (102, 200730), (153, 133820), (170, 120438), (180, 113747), (204, 100365), (255, 80292), (306, 66910), (340, 60219), (510, 40146), (612, 33455), (765, 26764), (1020, 20073), (1530, 13382), (3060, 6691)]