266786780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{4643}}^1$

素因数の和:4695

約数の個数: 72

約数和(自身を含む): 642488112

約数和(自身を除く): 375701332

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 169, 170, 221, 260, 338, 340, 442, 676, 845, 884, 1105, 1690, 2210, 2873, 3380, 4420, 4643, 5746, 9286, 11492, 14365, 18572, 23215, 28730, 46430, 57460, 60359, 78931, 92860, 120718, 157862, 241436, 301795, 315724, 394655, 603590, 784667, 789310, 1026103, 1207180, 1569334, 1578620, 2052206, 3138668, 3923335, 4104412, 5130515, 7846670, 10261030, 13339339, 15693340, 20522060, 26678678, 53357356, 66696695, 133393390, 266786780]

約数ペア:

[(1, 266786780), (2, 133393390), (4, 66696695), (5, 53357356), (10, 26678678), (13, 20522060), (17, 15693340), (20, 13339339), (26, 10261030), (34, 7846670), (52, 5130515), (65, 4104412), (68, 3923335), (85, 3138668), (130, 2052206), (169, 1578620), (170, 1569334), (221, 1207180), (260, 1026103), (338, 789310), (340, 784667), (442, 603590), (676, 394655), (845, 315724), (884, 301795), (1105, 241436), (1690, 157862), (2210, 120718), (2873, 92860), (3380, 78931), (4420, 60359), (4643, 57460), (5746, 46430), (9286, 28730), (11492, 23215), (14365, 18572)]