20540880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{607}}^1$

素因数の和:673

約数の個数: 120

約数和(自身を含む): 70566912

約数和(自身を除く): 50026032

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 47, 48, 60, 72, 80, 90, 94, 120, 141, 144, 180, 188, 235, 240, 282, 360, 376, 423, 470, 564, 607, 705, 720, 752, 846, 940, 1128, 1214, 1410, 1692, 1821, 1880, 2115, 2256, 2428, 2820, 3035, 3384, 3642, 3760, 4230, 4856, 5463, 5640, 6070, 6768, 7284, 8460, 9105, 9712, 10926, 11280, 12140, 14568, 16920, 18210, 21852, 24280, 27315, 28529, 29136, 33840, 36420, 43704, 48560, 54630, 57058, 72840, 85587, 87408, 109260, 114116, 142645, 145680, 171174, 218520, 228232, 256761, 285290, 342348, 427935, 437040, 456464, 513522, 570580, 684696, 855870, 1027044, 1141160, 1283805, 1369392, 1711740, 2054088, 2282320, 2567610, 3423480, 4108176, 5135220, 6846960, 10270440, 20540880]

約数ペア:

[(1, 20540880), (2, 10270440), (3, 6846960), (4, 5135220), (5, 4108176), (6, 3423480), (8, 2567610), (9, 2282320), (10, 2054088), (12, 1711740), (15, 1369392), (16, 1283805), (18, 1141160), (20, 1027044), (24, 855870), (30, 684696), (36, 570580), (40, 513522), (45, 456464), (47, 437040), (48, 427935), (60, 342348), (72, 285290), (80, 256761), (90, 228232), (94, 218520), (120, 171174), (141, 145680), (144, 142645), (180, 114116), (188, 109260), (235, 87408), (240, 85587), (282, 72840), (360, 57058), (376, 54630), (423, 48560), (470, 43704), (564, 36420), (607, 33840), (705, 29136), (720, 28529), (752, 27315), (846, 24280), (940, 21852), (1128, 18210), (1214, 16920), (1410, 14568), (1692, 12140), (1821, 11280), (1880, 10926), (2115, 9712), (2256, 9105), (2428, 8460), (2820, 7284), (3035, 6768), (3384, 6070), (3642, 5640), (3760, 5463), (4230, 4856)]