20244540160

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1216619}}^1$

素因数の和:1216653

約数の個数: 72

約数和(自身を含む): 52222196880

約数和(自身を除く): 31977656720

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1280, 1664, 2080, 3328, 4160, 8320, 16640, 1216619, 2433238, 4866476, 6083095, 9732952, 12166190, 15816047, 19465904, 24332380, 31632094, 38931808, 48664760, 63264188, 77863616, 79080235, 97329520, 126528376, 155727232, 158160470, 194659040, 253056752, 311454464, 316320940, 389318080, 506113504, 632641880, 778636160, 1012227008, 1265283760, 1557272320, 2024454016, 2530567520, 4048908032, 5061135040, 10122270080, 20244540160]

約数ペア:

[(1, 20244540160), (2, 10122270080), (4, 5061135040), (5, 4048908032), (8, 2530567520), (10, 2024454016), (13, 1557272320), (16, 1265283760), (20, 1012227008), (26, 778636160), (32, 632641880), (40, 506113504), (52, 389318080), (64, 316320940), (65, 311454464), (80, 253056752), (104, 194659040), (128, 158160470), (130, 155727232), (160, 126528376), (208, 97329520), (256, 79080235), (260, 77863616), (320, 63264188), (416, 48664760), (520, 38931808), (640, 31632094), (832, 24332380), (1040, 19465904), (1280, 15816047), (1664, 12166190), (2080, 9732952), (3328, 6083095), (4160, 4866476), (8320, 2433238), (16640, 1216619)]