994976120

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{239}}^1\times {\mathrm{523}}^1$

素因数の和:972

約数の個数: 64

約数和(自身を含む): 2263680000

約数和(自身を除く): 1268703880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 239, 398, 478, 523, 796, 956, 995, 1046, 1195, 1592, 1912, 1990, 2092, 2390, 2615, 3980, 4184, 4780, 5230, 7960, 9560, 10460, 20920, 47561, 95122, 104077, 124997, 190244, 208154, 237805, 249994, 380488, 416308, 475610, 499988, 520385, 624985, 832616, 951220, 999976, 1040770, 1249970, 1902440, 2081540, 2499940, 4163080, 4999880, 24874403, 49748806, 99497612, 124372015, 198995224, 248744030, 497488060, 994976120]

約数ペア:

[(1, 994976120), (2, 497488060), (4, 248744030), (5, 198995224), (8, 124372015), (10, 99497612), (20, 49748806), (40, 24874403), (199, 4999880), (239, 4163080), (398, 2499940), (478, 2081540), (523, 1902440), (796, 1249970), (956, 1040770), (995, 999976), (1046, 951220), (1195, 832616), (1592, 624985), (1912, 520385), (1990, 499988), (2092, 475610), (2390, 416308), (2615, 380488), (3980, 249994), (4184, 237805), (4780, 208154), (5230, 190244), (7960, 124997), (9560, 104077), (10460, 95122), (20920, 47561)]