20273040

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{761}}^1$

素因数の和:817

約数の個数: 120

約数和(自身を含む): 70015608

約数和(自身を除く): 49742568

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 37, 40, 45, 48, 60, 72, 74, 80, 90, 111, 120, 144, 148, 180, 185, 222, 240, 296, 333, 360, 370, 444, 555, 592, 666, 720, 740, 761, 888, 1110, 1332, 1480, 1522, 1665, 1776, 2220, 2283, 2664, 2960, 3044, 3330, 3805, 4440, 4566, 5328, 6088, 6660, 6849, 7610, 8880, 9132, 11415, 12176, 13320, 13698, 15220, 18264, 22830, 26640, 27396, 28157, 30440, 34245, 36528, 45660, 54792, 56314, 60880, 68490, 84471, 91320, 109584, 112628, 136980, 140785, 168942, 182640, 225256, 253413, 273960, 281570, 337884, 422355, 450512, 506826, 547920, 563140, 675768, 844710, 1013652, 1126280, 1267065, 1351536, 1689420, 2027304, 2252560, 2534130, 3378840, 4054608, 5068260, 6757680, 10136520, 20273040]

約数ペア:

[(1, 20273040), (2, 10136520), (3, 6757680), (4, 5068260), (5, 4054608), (6, 3378840), (8, 2534130), (9, 2252560), (10, 2027304), (12, 1689420), (15, 1351536), (16, 1267065), (18, 1126280), (20, 1013652), (24, 844710), (30, 675768), (36, 563140), (37, 547920), (40, 506826), (45, 450512), (48, 422355), (60, 337884), (72, 281570), (74, 273960), (80, 253413), (90, 225256), (111, 182640), (120, 168942), (144, 140785), (148, 136980), (180, 112628), (185, 109584), (222, 91320), (240, 84471), (296, 68490), (333, 60880), (360, 56314), (370, 54792), (444, 45660), (555, 36528), (592, 34245), (666, 30440), (720, 28157), (740, 27396), (761, 26640), (888, 22830), (1110, 18264), (1332, 15220), (1480, 13698), (1522, 13320), (1665, 12176), (1776, 11415), (2220, 9132), (2283, 8880), (2664, 7610), (2960, 6849), (3044, 6660), (3330, 6088), (3805, 5328), (4440, 4566)]