20550240

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:162

約数の個数: 192

約数和(自身を含む): 74027520

約数和(自身を除く): 53477280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 67, 71, 72, 80, 90, 96, 108, 120, 134, 135, 142, 144, 160, 180, 201, 213, 216, 240, 268, 270, 284, 288, 335, 355, 360, 402, 426, 432, 480, 536, 540, 568, 603, 639, 670, 710, 720, 804, 852, 864, 1005, 1065, 1072, 1080, 1136, 1206, 1278, 1340, 1420, 1440, 1608, 1704, 1809, 1917, 2010, 2130, 2144, 2160, 2272, 2412, 2556, 2680, 2840, 3015, 3195, 3216, 3408, 3618, 3834, 4020, 4260, 4320, 4757, 4824, 5112, 5360, 5680, 6030, 6390, 6432, 6816, 7236, 7668, 8040, 8520, 9045, 9514, 9585, 9648, 10224, 10720, 11360, 12060, 12780, 14271, 14472, 15336, 16080, 17040, 18090, 19028, 19170, 19296, 20448, 23785, 24120, 25560, 28542, 28944, 30672, 32160, 34080, 36180, 38056, 38340, 42813, 47570, 48240, 51120, 57084, 57888, 61344, 71355, 72360, 76112, 76680, 85626, 95140, 96480, 102240, 114168, 128439, 142710, 144720, 152224, 153360, 171252, 190280, 214065, 228336, 256878, 285420, 289440, 306720, 342504, 380560, 428130, 456672, 513756, 570840, 642195, 685008, 761120, 856260, 1027512, 1141680, 1284390, 1370016, 1712520, 2055024, 2283360, 2568780, 3425040, 4110048, 5137560, 6850080, 10275120, 20550240]

約数ペア:

[(1, 20550240), (2, 10275120), (3, 6850080), (4, 5137560), (5, 4110048), (6, 3425040), (8, 2568780), (9, 2283360), (10, 2055024), (12, 1712520), (15, 1370016), (16, 1284390), (18, 1141680), (20, 1027512), (24, 856260), (27, 761120), (30, 685008), (32, 642195), (36, 570840), (40, 513756), (45, 456672), (48, 428130), (54, 380560), (60, 342504), (67, 306720), (71, 289440), (72, 285420), (80, 256878), (90, 228336), (96, 214065), (108, 190280), (120, 171252), (134, 153360), (135, 152224), (142, 144720), (144, 142710), (160, 128439), (180, 114168), (201, 102240), (213, 96480), (216, 95140), (240, 85626), (268, 76680), (270, 76112), (284, 72360), (288, 71355), (335, 61344), (355, 57888), (360, 57084), (402, 51120), (426, 48240), (432, 47570), (480, 42813), (536, 38340), (540, 38056), (568, 36180), (603, 34080), (639, 32160), (670, 30672), (710, 28944), (720, 28542), (804, 25560), (852, 24120), (864, 23785), (1005, 20448), (1065, 19296), (1072, 19170), (1080, 19028), (1136, 18090), (1206, 17040), (1278, 16080), (1340, 15336), (1420, 14472), (1440, 14271), (1608, 12780), (1704, 12060), (1809, 11360), (1917, 10720), (2010, 10224), (2130, 9648), (2144, 9585), (2160, 9514), (2272, 9045), (2412, 8520), (2556, 8040), (2680, 7668), (2840, 7236), (3015, 6816), (3195, 6432), (3216, 6390), (3408, 6030), (3618, 5680), (3834, 5360), (4020, 5112), (4260, 4824), (4320, 4757)]