20095840

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:176

約数の個数: 96

約数和(自身を含む): 50621760

約数和(自身を除く): 30525920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 61, 71, 80, 116, 122, 142, 145, 160, 232, 244, 284, 290, 305, 355, 464, 488, 568, 580, 610, 710, 928, 976, 1136, 1160, 1220, 1420, 1769, 1952, 2059, 2272, 2320, 2440, 2840, 3538, 4118, 4331, 4640, 4880, 5680, 7076, 8236, 8662, 8845, 9760, 10295, 11360, 14152, 16472, 17324, 17690, 20590, 21655, 28304, 32944, 34648, 35380, 41180, 43310, 56608, 65888, 69296, 70760, 82360, 86620, 125599, 138592, 141520, 164720, 173240, 251198, 283040, 329440, 346480, 502396, 627995, 692960, 1004792, 1255990, 2009584, 2511980, 4019168, 5023960, 10047920, 20095840]

約数ペア:

[(1, 20095840), (2, 10047920), (4, 5023960), (5, 4019168), (8, 2511980), (10, 2009584), (16, 1255990), (20, 1004792), (29, 692960), (32, 627995), (40, 502396), (58, 346480), (61, 329440), (71, 283040), (80, 251198), (116, 173240), (122, 164720), (142, 141520), (145, 138592), (160, 125599), (232, 86620), (244, 82360), (284, 70760), (290, 69296), (305, 65888), (355, 56608), (464, 43310), (488, 41180), (568, 35380), (580, 34648), (610, 32944), (710, 28304), (928, 21655), (976, 20590), (1136, 17690), (1160, 17324), (1220, 16472), (1420, 14152), (1769, 11360), (1952, 10295), (2059, 9760), (2272, 8845), (2320, 8662), (2440, 8236), (2840, 7076), (3538, 5680), (4118, 4880), (4331, 4640)]