816660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{349}}^1$

素因数の和:377

約数の個数: 72

約数和(自身を含む): 2675400

約数和(自身を除く): 1858740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 349, 390, 468, 585, 698, 780, 1047, 1170, 1396, 1745, 2094, 2340, 3141, 3490, 4188, 4537, 5235, 6282, 6980, 9074, 10470, 12564, 13611, 15705, 18148, 20940, 22685, 27222, 31410, 40833, 45370, 54444, 62820, 68055, 81666, 90740, 136110, 163332, 204165, 272220, 408330, 816660]

約数ペア:

[(1, 816660), (2, 408330), (3, 272220), (4, 204165), (5, 163332), (6, 136110), (9, 90740), (10, 81666), (12, 68055), (13, 62820), (15, 54444), (18, 45370), (20, 40833), (26, 31410), (30, 27222), (36, 22685), (39, 20940), (45, 18148), (52, 15705), (60, 13611), (65, 12564), (78, 10470), (90, 9074), (117, 6980), (130, 6282), (156, 5235), (180, 4537), (195, 4188), (234, 3490), (260, 3141), (349, 2340), (390, 2094), (468, 1745), (585, 1396), (698, 1170), (780, 1047)]