77280220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{4327}}^1$

素因数の和:4402

約数の個数: 48

約数和(自身を含む): 174504960

約数和(自身を除く): 97224740

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 47, 76, 94, 95, 188, 190, 235, 380, 470, 893, 940, 1786, 3572, 4327, 4465, 8654, 8930, 17308, 17860, 21635, 43270, 82213, 86540, 164426, 203369, 328852, 406738, 411065, 813476, 822130, 1016845, 1644260, 2033690, 3864011, 4067380, 7728022, 15456044, 19320055, 38640110, 77280220]

約数ペア:

[(1, 77280220), (2, 38640110), (4, 19320055), (5, 15456044), (10, 7728022), (19, 4067380), (20, 3864011), (38, 2033690), (47, 1644260), (76, 1016845), (94, 822130), (95, 813476), (188, 411065), (190, 406738), (235, 328852), (380, 203369), (470, 164426), (893, 86540), (940, 82213), (1786, 43270), (3572, 21635), (4327, 17860), (4465, 17308), (8654, 8930)]