221643280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{162973}}^1$

素因数の和:163003

約数の個数: 40

約数和(自身を含む): 545636952

約数和(自身を除く): 323993672

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 162973, 325946, 651892, 814865, 1303784, 1629730, 2607568, 2770541, 3259460, 5541082, 6518920, 11082164, 13037840, 13852705, 22164328, 27705410, 44328656, 55410820, 110821640, 221643280]

約数ペア:

[(1, 221643280), (2, 110821640), (4, 55410820), (5, 44328656), (8, 27705410), (10, 22164328), (16, 13852705), (17, 13037840), (20, 11082164), (34, 6518920), (40, 5541082), (68, 3259460), (80, 2770541), (85, 2607568), (136, 1629730), (170, 1303784), (272, 814865), (340, 651892), (680, 325946), (1360, 162973)]