171970760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{7691}}^1$

素因数の和:7758

約数の個数: 64

約数和(自身を含む): 426444480

約数和(自身を除く): 254473720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 86, 104, 130, 172, 215, 260, 344, 430, 520, 559, 860, 1118, 1720, 2236, 2795, 4472, 5590, 7691, 11180, 15382, 22360, 30764, 38455, 61528, 76910, 99983, 153820, 199966, 307640, 330713, 399932, 499915, 661426, 799864, 999830, 1322852, 1653565, 1999660, 2645704, 3307130, 3999320, 4299269, 6614260, 8598538, 13228520, 17197076, 21496345, 34394152, 42992690, 85985380, 171970760]

約数ペア:

[(1, 171970760), (2, 85985380), (4, 42992690), (5, 34394152), (8, 21496345), (10, 17197076), (13, 13228520), (20, 8598538), (26, 6614260), (40, 4299269), (43, 3999320), (52, 3307130), (65, 2645704), (86, 1999660), (104, 1653565), (130, 1322852), (172, 999830), (215, 799864), (260, 661426), (344, 499915), (430, 399932), (520, 330713), (559, 307640), (860, 199966), (1118, 153820), (1720, 99983), (2236, 76910), (2795, 61528), (4472, 38455), (5590, 30764), (7691, 22360), (11180, 15382)]