199985690

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{277}}^1$

素因数の和:423

約数の個数: 64

約数和(自身を含む): 391032576

約数和(自身を除く): 191046886

約数列:

[1, 2, 5, 10, 23, 43, 46, 73, 86, 115, 146, 215, 230, 277, 365, 430, 554, 730, 989, 1385, 1679, 1978, 2770, 3139, 3358, 4945, 6278, 6371, 8395, 9890, 11911, 12742, 15695, 16790, 20221, 23822, 31390, 31855, 40442, 59555, 63710, 72197, 101105, 119110, 144394, 202210, 273953, 360985, 465083, 547906, 721970, 869503, 930166, 1369765, 1739006, 2325415, 2739530, 4347515, 4650830, 8695030, 19998569, 39997138, 99992845, 199985690]

約数ペア:

[(1, 199985690), (2, 99992845), (5, 39997138), (10, 19998569), (23, 8695030), (43, 4650830), (46, 4347515), (73, 2739530), (86, 2325415), (115, 1739006), (146, 1369765), (215, 930166), (230, 869503), (277, 721970), (365, 547906), (430, 465083), (554, 360985), (730, 273953), (989, 202210), (1385, 144394), (1679, 119110), (1978, 101105), (2770, 72197), (3139, 63710), (3358, 59555), (4945, 40442), (6278, 31855), (6371, 31390), (8395, 23822), (9890, 20221), (11911, 16790), (12742, 15695)]