217540820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{13751}}^1$

素因数の和:13880

約数の個数: 48

約数和(自身を含む): 526756608

約数和(自身を除く): 309215788

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 113, 140, 226, 452, 565, 791, 1130, 1582, 2260, 3164, 3955, 7910, 13751, 15820, 27502, 55004, 68755, 96257, 137510, 192514, 275020, 385028, 481285, 962570, 1553863, 1925140, 3107726, 6215452, 7769315, 10877041, 15538630, 21754082, 31077260, 43508164, 54385205, 108770410, 217540820]

約数ペア:

[(1, 217540820), (2, 108770410), (4, 54385205), (5, 43508164), (7, 31077260), (10, 21754082), (14, 15538630), (20, 10877041), (28, 7769315), (35, 6215452), (70, 3107726), (113, 1925140), (140, 1553863), (226, 962570), (452, 481285), (565, 385028), (791, 275020), (1130, 192514), (1582, 137510), (2260, 96257), (3164, 68755), (3955, 55004), (7910, 27502), (13751, 15820)]