221020488

素因数分解:

$2^3\times 3^4\times {\mathrm{13}}^1\times {\mathrm{26237}}^1$

素因数の和:26268

約数の個数: 80

約数和(自身を含む): 666707580

約数和(自身を除く): 445687092

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 36, 39, 52, 54, 72, 78, 81, 104, 108, 117, 156, 162, 216, 234, 312, 324, 351, 468, 648, 702, 936, 1053, 1404, 2106, 2808, 4212, 8424, 26237, 52474, 78711, 104948, 157422, 209896, 236133, 314844, 341081, 472266, 629688, 682162, 708399, 944532, 1023243, 1364324, 1416798, 1889064, 2046486, 2125197, 2728648, 2833596, 3069729, 4092972, 4250394, 5667192, 6139458, 8185944, 8500788, 9209187, 12278916, 17001576, 18418374, 24557832, 27627561, 36836748, 55255122, 73673496, 110510244, 221020488]

約数ペア:

[(1, 221020488), (2, 110510244), (3, 73673496), (4, 55255122), (6, 36836748), (8, 27627561), (9, 24557832), (12, 18418374), (13, 17001576), (18, 12278916), (24, 9209187), (26, 8500788), (27, 8185944), (36, 6139458), (39, 5667192), (52, 4250394), (54, 4092972), (72, 3069729), (78, 2833596), (81, 2728648), (104, 2125197), (108, 2046486), (117, 1889064), (156, 1416798), (162, 1364324), (216, 1023243), (234, 944532), (312, 708399), (324, 682162), (351, 629688), (468, 472266), (648, 341081), (702, 314844), (936, 236133), (1053, 209896), (1404, 157422), (2106, 104948), (2808, 78711), (4212, 52474), (8424, 26237)]