219985744

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{199}}^1\times {\mathrm{571}}^1$

素因数の和:800

約数の個数: 60

約数和(自身を含む): 471671200

約数和(自身を除く): 251685456

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 121, 176, 199, 242, 398, 484, 571, 796, 968, 1142, 1592, 1936, 2189, 2284, 3184, 4378, 4568, 6281, 8756, 9136, 12562, 17512, 24079, 25124, 35024, 48158, 50248, 69091, 96316, 100496, 113629, 138182, 192632, 227258, 276364, 385264, 454516, 552728, 909032, 1105456, 1249919, 1818064, 2499838, 4999676, 9999352, 13749109, 19998704, 27498218, 54996436, 109992872, 219985744]

約数ペア:

[(1, 219985744), (2, 109992872), (4, 54996436), (8, 27498218), (11, 19998704), (16, 13749109), (22, 9999352), (44, 4999676), (88, 2499838), (121, 1818064), (176, 1249919), (199, 1105456), (242, 909032), (398, 552728), (484, 454516), (571, 385264), (796, 276364), (968, 227258), (1142, 192632), (1592, 138182), (1936, 113629), (2189, 100496), (2284, 96316), (3184, 69091), (4378, 50248), (4568, 48158), (6281, 35024), (8756, 25124), (9136, 24079), (12562, 17512)]