39988720

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{211}}^1$

素因数の和:350

約数の個数: 80

約数和(自身を含む): 98422272

約数和(自身を除く): 58433552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 103, 115, 184, 206, 211, 230, 368, 412, 422, 460, 515, 824, 844, 920, 1030, 1055, 1648, 1688, 1840, 2060, 2110, 2369, 3376, 4120, 4220, 4738, 4853, 8240, 8440, 9476, 9706, 11845, 16880, 18952, 19412, 21733, 23690, 24265, 37904, 38824, 43466, 47380, 48530, 77648, 86932, 94760, 97060, 108665, 173864, 189520, 194120, 217330, 347728, 388240, 434660, 499859, 869320, 999718, 1738640, 1999436, 2499295, 3998872, 4998590, 7997744, 9997180, 19994360, 39988720]

約数ペア:

[(1, 39988720), (2, 19994360), (4, 9997180), (5, 7997744), (8, 4998590), (10, 3998872), (16, 2499295), (20, 1999436), (23, 1738640), (40, 999718), (46, 869320), (80, 499859), (92, 434660), (103, 388240), (115, 347728), (184, 217330), (206, 194120), (211, 189520), (230, 173864), (368, 108665), (412, 97060), (422, 94760), (460, 86932), (515, 77648), (824, 48530), (844, 47380), (920, 43466), (1030, 38824), (1055, 37904), (1648, 24265), (1688, 23690), (1840, 21733), (2060, 19412), (2110, 18952), (2369, 16880), (3376, 11845), (4120, 9706), (4220, 9476), (4738, 8440), (4853, 8240)]