81042720

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{15349}}^1$

素因数の和:15378

約数の個数: 96

約数和(自身を含む): 278510400

約数和(自身を除く): 197467680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 66, 80, 88, 96, 110, 120, 132, 160, 165, 176, 220, 240, 264, 330, 352, 440, 480, 528, 660, 880, 1056, 1320, 1760, 2640, 5280, 15349, 30698, 46047, 61396, 76745, 92094, 122792, 153490, 168839, 184188, 230235, 245584, 306980, 337678, 368376, 460470, 491168, 506517, 613960, 675356, 736752, 844195, 920940, 1013034, 1227920, 1350712, 1473504, 1688390, 1841880, 2026068, 2455840, 2532585, 2701424, 3376780, 3683760, 4052136, 5065170, 5402848, 6753560, 7367520, 8104272, 10130340, 13507120, 16208544, 20260680, 27014240, 40521360, 81042720]

約数ペア:

[(1, 81042720), (2, 40521360), (3, 27014240), (4, 20260680), (5, 16208544), (6, 13507120), (8, 10130340), (10, 8104272), (11, 7367520), (12, 6753560), (15, 5402848), (16, 5065170), (20, 4052136), (22, 3683760), (24, 3376780), (30, 2701424), (32, 2532585), (33, 2455840), (40, 2026068), (44, 1841880), (48, 1688390), (55, 1473504), (60, 1350712), (66, 1227920), (80, 1013034), (88, 920940), (96, 844195), (110, 736752), (120, 675356), (132, 613960), (160, 506517), (165, 491168), (176, 460470), (220, 368376), (240, 337678), (264, 306980), (330, 245584), (352, 230235), (440, 184188), (480, 168839), (528, 153490), (660, 122792), (880, 92094), (1056, 76745), (1320, 61396), (1760, 46047), (2640, 30698), (5280, 15349)]