201978740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{263}}^1$

素因数の和:381

約数の個数: 96

約数和(自身を含む): 468357120

約数和(自身を除く): 266378380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 47, 76, 86, 94, 95, 172, 188, 190, 215, 235, 263, 380, 430, 470, 526, 817, 860, 893, 940, 1052, 1315, 1634, 1786, 2021, 2630, 3268, 3572, 4042, 4085, 4465, 4997, 5260, 8084, 8170, 8930, 9994, 10105, 11309, 12361, 16340, 17860, 19988, 20210, 22618, 24722, 24985, 38399, 40420, 45236, 49444, 49970, 56545, 61805, 76798, 99940, 113090, 123610, 153596, 191995, 214871, 226180, 234859, 247220, 383990, 429742, 469718, 531523, 767980, 859484, 939436, 1063046, 1074355, 1174295, 2126092, 2148710, 2348590, 2657615, 4297420, 4697180, 5315230, 10098937, 10630460, 20197874, 40395748, 50494685, 100989370, 201978740]

約数ペア:

[(1, 201978740), (2, 100989370), (4, 50494685), (5, 40395748), (10, 20197874), (19, 10630460), (20, 10098937), (38, 5315230), (43, 4697180), (47, 4297420), (76, 2657615), (86, 2348590), (94, 2148710), (95, 2126092), (172, 1174295), (188, 1074355), (190, 1063046), (215, 939436), (235, 859484), (263, 767980), (380, 531523), (430, 469718), (470, 429742), (526, 383990), (817, 247220), (860, 234859), (893, 226180), (940, 214871), (1052, 191995), (1315, 153596), (1634, 123610), (1786, 113090), (2021, 99940), (2630, 76798), (3268, 61805), (3572, 56545), (4042, 49970), (4085, 49444), (4465, 45236), (4997, 40420), (5260, 38399), (8084, 24985), (8170, 24722), (8930, 22618), (9994, 20210), (10105, 19988), (11309, 17860), (12361, 16340)]