20138264560

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{233}}^1\times {\mathrm{439}}^1$

素因数の和:815

約数の個数: 160

約数和(自身を含む): 49638251520

約数和(自身を除く): 29499986960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 107, 115, 184, 214, 230, 233, 368, 428, 439, 460, 466, 535, 856, 878, 920, 932, 1070, 1165, 1712, 1756, 1840, 1864, 2140, 2195, 2330, 2461, 3512, 3728, 4280, 4390, 4660, 4922, 5359, 7024, 8560, 8780, 9320, 9844, 10097, 10718, 12305, 17560, 18640, 19688, 20194, 21436, 24610, 24931, 26795, 35120, 39376, 40388, 42872, 46973, 49220, 49862, 50485, 53590, 80776, 85744, 93946, 98440, 99724, 100970, 102287, 107180, 124655, 161552, 187892, 196880, 199448, 201940, 204574, 214360, 234865, 249310, 375784, 398896, 403880, 409148, 428720, 469730, 498620, 511435, 573413, 751568, 807760, 818296, 939460, 997240, 1022870, 1080379, 1146826, 1636592, 1878920, 1994480, 2045740, 2160758, 2293652, 2352601, 2867065, 3757840, 4091480, 4321516, 4587304, 4705202, 5401895, 5734130, 8182960, 8643032, 9174608, 9410404, 10803790, 10944709, 11468260, 11763005, 17286064, 18820808, 21607580, 21889418, 22936520, 23526010, 37641616, 43215160, 43778836, 45873040, 47052020, 54723545, 86430320, 87557672, 94104040, 109447090, 175115344, 188208080, 218894180, 251728307, 437788360, 503456614, 875576720, 1006913228, 1258641535, 2013826456, 2517283070, 4027652912, 5034566140, 10069132280, 20138264560]

約数ペア:

[(1, 20138264560), (2, 10069132280), (4, 5034566140), (5, 4027652912), (8, 2517283070), (10, 2013826456), (16, 1258641535), (20, 1006913228), (23, 875576720), (40, 503456614), (46, 437788360), (80, 251728307), (92, 218894180), (107, 188208080), (115, 175115344), (184, 109447090), (214, 94104040), (230, 87557672), (233, 86430320), (368, 54723545), (428, 47052020), (439, 45873040), (460, 43778836), (466, 43215160), (535, 37641616), (856, 23526010), (878, 22936520), (920, 21889418), (932, 21607580), (1070, 18820808), (1165, 17286064), (1712, 11763005), (1756, 11468260), (1840, 10944709), (1864, 10803790), (2140, 9410404), (2195, 9174608), (2330, 8643032), (2461, 8182960), (3512, 5734130), (3728, 5401895), (4280, 4705202), (4390, 4587304), (4660, 4321516), (4922, 4091480), (5359, 3757840), (7024, 2867065), (8560, 2352601), (8780, 2293652), (9320, 2160758), (9844, 2045740), (10097, 1994480), (10718, 1878920), (12305, 1636592), (17560, 1146826), (18640, 1080379), (19688, 1022870), (20194, 997240), (21436, 939460), (24610, 818296), (24931, 807760), (26795, 751568), (35120, 573413), (39376, 511435), (40388, 498620), (42872, 469730), (46973, 428720), (49220, 409148), (49862, 403880), (50485, 398896), (53590, 375784), (80776, 249310), (85744, 234865), (93946, 214360), (98440, 204574), (99724, 201940), (100970, 199448), (102287, 196880), (107180, 187892), (124655, 161552)]