20309088520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{16451}}^1\times {\mathrm{4409}}^1$

素因数の和:20878

約数の個数: 64

約数和(自身を含む): 52238390400

約数和(自身を除く): 31929301880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 4409, 8818, 16451, 17636, 22045, 30863, 32902, 35272, 44090, 61726, 65804, 82255, 88180, 115157, 123452, 131608, 154315, 164510, 176360, 230314, 246904, 308630, 329020, 460628, 575785, 617260, 658040, 921256, 1151570, 1234520, 2303140, 4606280, 72532459, 145064918, 290129836, 362662295, 507727213, 580259672, 725324590, 1015454426, 1450649180, 2030908852, 2538636065, 2901298360, 4061817704, 5077272130, 10154544260, 20309088520]

約数ペア:

[(1, 20309088520), (2, 10154544260), (4, 5077272130), (5, 4061817704), (7, 2901298360), (8, 2538636065), (10, 2030908852), (14, 1450649180), (20, 1015454426), (28, 725324590), (35, 580259672), (40, 507727213), (56, 362662295), (70, 290129836), (140, 145064918), (280, 72532459), (4409, 4606280), (8818, 2303140), (16451, 1234520), (17636, 1151570), (22045, 921256), (30863, 658040), (32902, 617260), (35272, 575785), (44090, 460628), (61726, 329020), (65804, 308630), (82255, 246904), (88180, 230314), (115157, 176360), (123452, 164510), (131608, 154315)]