20103840

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{607}}^1$

素因数の和:651

約数の個数: 144

約数和(自身を含む): 71705088

約数和(自身を除く): 51601248

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 32, 36, 40, 45, 46, 48, 60, 69, 72, 80, 90, 92, 96, 115, 120, 138, 144, 160, 180, 184, 207, 230, 240, 276, 288, 345, 360, 368, 414, 460, 480, 552, 607, 690, 720, 736, 828, 920, 1035, 1104, 1214, 1380, 1440, 1656, 1821, 1840, 2070, 2208, 2428, 2760, 3035, 3312, 3642, 3680, 4140, 4856, 5463, 5520, 6070, 6624, 7284, 8280, 9105, 9712, 10926, 11040, 12140, 13961, 14568, 16560, 18210, 19424, 21852, 24280, 27315, 27922, 29136, 33120, 36420, 41883, 43704, 48560, 54630, 55844, 58272, 69805, 72840, 83766, 87408, 97120, 109260, 111688, 125649, 139610, 145680, 167532, 174816, 209415, 218520, 223376, 251298, 279220, 291360, 335064, 418830, 437040, 446752, 502596, 558440, 628245, 670128, 837660, 874080, 1005192, 1116880, 1256490, 1340256, 1675320, 2010384, 2233760, 2512980, 3350640, 4020768, 5025960, 6701280, 10051920, 20103840]

約数ペア:

[(1, 20103840), (2, 10051920), (3, 6701280), (4, 5025960), (5, 4020768), (6, 3350640), (8, 2512980), (9, 2233760), (10, 2010384), (12, 1675320), (15, 1340256), (16, 1256490), (18, 1116880), (20, 1005192), (23, 874080), (24, 837660), (30, 670128), (32, 628245), (36, 558440), (40, 502596), (45, 446752), (46, 437040), (48, 418830), (60, 335064), (69, 291360), (72, 279220), (80, 251298), (90, 223376), (92, 218520), (96, 209415), (115, 174816), (120, 167532), (138, 145680), (144, 139610), (160, 125649), (180, 111688), (184, 109260), (207, 97120), (230, 87408), (240, 83766), (276, 72840), (288, 69805), (345, 58272), (360, 55844), (368, 54630), (414, 48560), (460, 43704), (480, 41883), (552, 36420), (607, 33120), (690, 29136), (720, 27922), (736, 27315), (828, 24280), (920, 21852), (1035, 19424), (1104, 18210), (1214, 16560), (1380, 14568), (1440, 13961), (1656, 12140), (1821, 11040), (1840, 10926), (2070, 9712), (2208, 9105), (2428, 8280), (2760, 7284), (3035, 6624), (3312, 6070), (3642, 5520), (3680, 5463), (4140, 4856)]