20027280

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1$

素因数の和:174

約数の個数: 240

約数和(自身を含む): 78369984

約数和(自身を除く): 58342704

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 48, 49, 52, 56, 60, 65, 70, 78, 80, 84, 91, 98, 104, 105, 112, 120, 130, 131, 140, 147, 156, 168, 182, 195, 196, 208, 210, 240, 245, 260, 262, 273, 280, 294, 312, 336, 364, 390, 392, 393, 420, 455, 490, 520, 524, 546, 560, 588, 624, 637, 655, 728, 735, 780, 784, 786, 840, 910, 917, 980, 1040, 1048, 1092, 1176, 1274, 1310, 1365, 1456, 1470, 1560, 1572, 1680, 1703, 1820, 1834, 1911, 1960, 1965, 2096, 2184, 2352, 2548, 2620, 2730, 2751, 2940, 3120, 3144, 3185, 3406, 3640, 3668, 3822, 3920, 3930, 4368, 4585, 5096, 5109, 5240, 5460, 5502, 5880, 6288, 6370, 6419, 6812, 7280, 7336, 7644, 7860, 8515, 9170, 9555, 10192, 10218, 10480, 10920, 11004, 11760, 11921, 12740, 12838, 13624, 13755, 14672, 15288, 15720, 17030, 18340, 19110, 19257, 20436, 21840, 22008, 23842, 25480, 25545, 25676, 27248, 27510, 30576, 31440, 32095, 34060, 35763, 36680, 38220, 38514, 40872, 44016, 47684, 50960, 51090, 51352, 55020, 59605, 64190, 68120, 71526, 73360, 76440, 77028, 81744, 83447, 95368, 96285, 102180, 102704, 110040, 119210, 128380, 136240, 143052, 152880, 154056, 166894, 178815, 190736, 192570, 204360, 220080, 238420, 250341, 256760, 286104, 308112, 333788, 357630, 385140, 408720, 417235, 476840, 500682, 513520, 572208, 667576, 715260, 770280, 834470, 953680, 1001364, 1251705, 1335152, 1430520, 1540560, 1668940, 2002728, 2503410, 2861040, 3337880, 4005456, 5006820, 6675760, 10013640, 20027280]

約数ペア:

[(1, 20027280), (2, 10013640), (3, 6675760), (4, 5006820), (5, 4005456), (6, 3337880), (7, 2861040), (8, 2503410), (10, 2002728), (12, 1668940), (13, 1540560), (14, 1430520), (15, 1335152), (16, 1251705), (20, 1001364), (21, 953680), (24, 834470), (26, 770280), (28, 715260), (30, 667576), (35, 572208), (39, 513520), (40, 500682), (42, 476840), (48, 417235), (49, 408720), (52, 385140), (56, 357630), (60, 333788), (65, 308112), (70, 286104), (78, 256760), (80, 250341), (84, 238420), (91, 220080), (98, 204360), (104, 192570), (105, 190736), (112, 178815), (120, 166894), (130, 154056), (131, 152880), (140, 143052), (147, 136240), (156, 128380), (168, 119210), (182, 110040), (195, 102704), (196, 102180), (208, 96285), (210, 95368), (240, 83447), (245, 81744), (260, 77028), (262, 76440), (273, 73360), (280, 71526), (294, 68120), (312, 64190), (336, 59605), (364, 55020), (390, 51352), (392, 51090), (393, 50960), (420, 47684), (455, 44016), (490, 40872), (520, 38514), (524, 38220), (546, 36680), (560, 35763), (588, 34060), (624, 32095), (637, 31440), (655, 30576), (728, 27510), (735, 27248), (780, 25676), (784, 25545), (786, 25480), (840, 23842), (910, 22008), (917, 21840), (980, 20436), (1040, 19257), (1048, 19110), (1092, 18340), (1176, 17030), (1274, 15720), (1310, 15288), (1365, 14672), (1456, 13755), (1470, 13624), (1560, 12838), (1572, 12740), (1680, 11921), (1703, 11760), (1820, 11004), (1834, 10920), (1911, 10480), (1960, 10218), (1965, 10192), (2096, 9555), (2184, 9170), (2352, 8515), (2548, 7860), (2620, 7644), (2730, 7336), (2751, 7280), (2940, 6812), (3120, 6419), (3144, 6370), (3185, 6288), (3406, 5880), (3640, 5502), (3668, 5460), (3822, 5240), (3920, 5109), (3930, 5096), (4368, 4585)]