398583640

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{15643}}^1$

素因数の和:15681

約数の個数: 96

約数和(自身を含む): 1123552080

約数和(自身を除く): 724968440

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 91, 98, 104, 130, 140, 182, 196, 245, 260, 280, 364, 392, 455, 490, 520, 637, 728, 910, 980, 1274, 1820, 1960, 2548, 3185, 3640, 5096, 6370, 12740, 15643, 25480, 31286, 62572, 78215, 109501, 125144, 156430, 203359, 219002, 312860, 406718, 438004, 547505, 625720, 766507, 813436, 876008, 1016795, 1095010, 1423513, 1533014, 1626872, 2033590, 2190020, 2847026, 3066028, 3832535, 4067180, 4380040, 5694052, 6132056, 7117565, 7665070, 8134360, 9964591, 11388104, 14235130, 15330140, 19929182, 28470260, 30660280, 39858364, 49822955, 56940520, 79716728, 99645910, 199291820, 398583640]

約数ペア:

[(1, 398583640), (2, 199291820), (4, 99645910), (5, 79716728), (7, 56940520), (8, 49822955), (10, 39858364), (13, 30660280), (14, 28470260), (20, 19929182), (26, 15330140), (28, 14235130), (35, 11388104), (40, 9964591), (49, 8134360), (52, 7665070), (56, 7117565), (65, 6132056), (70, 5694052), (91, 4380040), (98, 4067180), (104, 3832535), (130, 3066028), (140, 2847026), (182, 2190020), (196, 2033590), (245, 1626872), (260, 1533014), (280, 1423513), (364, 1095010), (392, 1016795), (455, 876008), (490, 813436), (520, 766507), (637, 625720), (728, 547505), (910, 438004), (980, 406718), (1274, 312860), (1820, 219002), (1960, 203359), (2548, 156430), (3185, 125144), (3640, 109501), (5096, 78215), (6370, 62572), (12740, 31286), (15643, 25480)]