309531780

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1217}}^1$

素因数の和:1395

約数の個数: 120

約数和(自身を含む): 978000408

約数和(自身を除く): 668468628

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 157, 162, 180, 270, 314, 324, 405, 471, 540, 628, 785, 810, 942, 1217, 1413, 1570, 1620, 1884, 2355, 2434, 2826, 3140, 3651, 4239, 4710, 4868, 5652, 6085, 7065, 7302, 8478, 9420, 10953, 12170, 12717, 14130, 14604, 16956, 18255, 21195, 21906, 24340, 25434, 28260, 32859, 36510, 42390, 43812, 50868, 54765, 63585, 65718, 73020, 84780, 98577, 109530, 127170, 131436, 164295, 191069, 197154, 219060, 254340, 328590, 382138, 394308, 492885, 573207, 657180, 764276, 955345, 985770, 1146414, 1719621, 1910690, 1971540, 2292828, 2866035, 3439242, 3821380, 5158863, 5732070, 6878484, 8598105, 10317726, 11464140, 15476589, 17196210, 20635452, 25794315, 30953178, 34392420, 51588630, 61906356, 77382945, 103177260, 154765890, 309531780]

約数ペア:

[(1, 309531780), (2, 154765890), (3, 103177260), (4, 77382945), (5, 61906356), (6, 51588630), (9, 34392420), (10, 30953178), (12, 25794315), (15, 20635452), (18, 17196210), (20, 15476589), (27, 11464140), (30, 10317726), (36, 8598105), (45, 6878484), (54, 5732070), (60, 5158863), (81, 3821380), (90, 3439242), (108, 2866035), (135, 2292828), (157, 1971540), (162, 1910690), (180, 1719621), (270, 1146414), (314, 985770), (324, 955345), (405, 764276), (471, 657180), (540, 573207), (628, 492885), (785, 394308), (810, 382138), (942, 328590), (1217, 254340), (1413, 219060), (1570, 197154), (1620, 191069), (1884, 164295), (2355, 131436), (2434, 127170), (2826, 109530), (3140, 98577), (3651, 84780), (4239, 73020), (4710, 65718), (4868, 63585), (5652, 54765), (6085, 50868), (7065, 43812), (7302, 42390), (8478, 36510), (9420, 32859), (10953, 28260), (12170, 25434), (12717, 24340), (14130, 21906), (14604, 21195), (16956, 18255)]