20014872320

素因数分解:

$2^8\times 5^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{8191}}^1$

素因数の和:8318

約数の個数: 144

約数和(自身を含む): 50635210752

約数和(自身を除く): 30620338432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 83, 92, 115, 128, 160, 166, 184, 230, 256, 320, 332, 368, 415, 460, 640, 664, 736, 830, 920, 1280, 1328, 1472, 1660, 1840, 1909, 2656, 2944, 3320, 3680, 3818, 5312, 5888, 6640, 7360, 7636, 8191, 9545, 10624, 13280, 14720, 15272, 16382, 19090, 21248, 26560, 29440, 30544, 32764, 38180, 40955, 53120, 61088, 65528, 76360, 81910, 106240, 122176, 131056, 152720, 163820, 188393, 244352, 262112, 305440, 327640, 376786, 488704, 524224, 610880, 655280, 679853, 753572, 941965, 1048448, 1221760, 1310560, 1359706, 1507144, 1883930, 2096896, 2443520, 2621120, 2719412, 3014288, 3399265, 3767860, 5242240, 5438824, 6028576, 6798530, 7535720, 10484480, 10877648, 12057152, 13597060, 15071440, 15636619, 21755296, 24114304, 27194120, 30142880, 31273238, 43510592, 48228608, 54388240, 60285760, 62546476, 78183095, 87021184, 108776480, 120571520, 125092952, 156366190, 174042368, 217552960, 241143040, 250185904, 312732380, 435105920, 500371808, 625464760, 870211840, 1000743616, 1250929520, 2001487232, 2501859040, 4002974464, 5003718080, 10007436160, 20014872320]

約数ペア:

[(1, 20014872320), (2, 10007436160), (4, 5003718080), (5, 4002974464), (8, 2501859040), (10, 2001487232), (16, 1250929520), (20, 1000743616), (23, 870211840), (32, 625464760), (40, 500371808), (46, 435105920), (64, 312732380), (80, 250185904), (83, 241143040), (92, 217552960), (115, 174042368), (128, 156366190), (160, 125092952), (166, 120571520), (184, 108776480), (230, 87021184), (256, 78183095), (320, 62546476), (332, 60285760), (368, 54388240), (415, 48228608), (460, 43510592), (640, 31273238), (664, 30142880), (736, 27194120), (830, 24114304), (920, 21755296), (1280, 15636619), (1328, 15071440), (1472, 13597060), (1660, 12057152), (1840, 10877648), (1909, 10484480), (2656, 7535720), (2944, 6798530), (3320, 6028576), (3680, 5438824), (3818, 5242240), (5312, 3767860), (5888, 3399265), (6640, 3014288), (7360, 2719412), (7636, 2621120), (8191, 2443520), (9545, 2096896), (10624, 1883930), (13280, 1507144), (14720, 1359706), (15272, 1310560), (16382, 1221760), (19090, 1048448), (21248, 941965), (26560, 753572), (29440, 679853), (30544, 655280), (32764, 610880), (38180, 524224), (40955, 488704), (53120, 376786), (61088, 327640), (65528, 305440), (76360, 262112), (81910, 244352), (106240, 188393), (122176, 163820), (131056, 152720)]