311912820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1069}}^1\times {\mathrm{1621}}^1$

素因数の和:2705

約数の個数: 72

約数和(自身を含む): 947604840

約数和(自身を除く): 635692020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1069, 1621, 2138, 3207, 3242, 4276, 4863, 5345, 6414, 6484, 8105, 9621, 9726, 10690, 12828, 14589, 16035, 16210, 19242, 19452, 21380, 24315, 29178, 32070, 32420, 38484, 48105, 48630, 58356, 64140, 72945, 96210, 97260, 145890, 192420, 291780, 1732849, 3465698, 5198547, 6931396, 8664245, 10397094, 15595641, 17328490, 20794188, 25992735, 31191282, 34656980, 51985470, 62382564, 77978205, 103970940, 155956410, 311912820]

約数ペア:

[(1, 311912820), (2, 155956410), (3, 103970940), (4, 77978205), (5, 62382564), (6, 51985470), (9, 34656980), (10, 31191282), (12, 25992735), (15, 20794188), (18, 17328490), (20, 15595641), (30, 10397094), (36, 8664245), (45, 6931396), (60, 5198547), (90, 3465698), (180, 1732849), (1069, 291780), (1621, 192420), (2138, 145890), (3207, 97260), (3242, 96210), (4276, 72945), (4863, 64140), (5345, 58356), (6414, 48630), (6484, 48105), (8105, 38484), (9621, 32420), (9726, 32070), (10690, 29178), (12828, 24315), (14589, 21380), (16035, 19452), (16210, 19242)]