20533680

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{79}}^1$

素因数の和:136

約数の個数: 180

約数和(自身を含む): 73700640

約数和(自身を除く): 53166960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 36, 38, 40, 45, 48, 57, 60, 72, 76, 79, 80, 90, 95, 114, 120, 144, 152, 158, 171, 180, 190, 228, 237, 240, 285, 304, 316, 342, 360, 361, 380, 395, 456, 474, 570, 632, 684, 711, 720, 722, 760, 790, 855, 912, 948, 1083, 1140, 1185, 1264, 1368, 1422, 1444, 1501, 1520, 1580, 1710, 1805, 1896, 2166, 2280, 2370, 2736, 2844, 2888, 3002, 3160, 3249, 3420, 3555, 3610, 3792, 4332, 4503, 4560, 4740, 5415, 5688, 5776, 6004, 6320, 6498, 6840, 7110, 7220, 7505, 8664, 9006, 9480, 10830, 11376, 12008, 12996, 13509, 13680, 14220, 14440, 15010, 16245, 17328, 18012, 18960, 21660, 22515, 24016, 25992, 27018, 28440, 28519, 28880, 30020, 32490, 36024, 43320, 45030, 51984, 54036, 56880, 57038, 60040, 64980, 67545, 72048, 85557, 86640, 90060, 108072, 114076, 120080, 129960, 135090, 142595, 171114, 180120, 216144, 228152, 256671, 259920, 270180, 285190, 342228, 360240, 427785, 456304, 513342, 540360, 570380, 684456, 855570, 1026684, 1080720, 1140760, 1283355, 1368912, 1711140, 2053368, 2281520, 2566710, 3422280, 4106736, 5133420, 6844560, 10266840, 20533680]

約数ペア:

[(1, 20533680), (2, 10266840), (3, 6844560), (4, 5133420), (5, 4106736), (6, 3422280), (8, 2566710), (9, 2281520), (10, 2053368), (12, 1711140), (15, 1368912), (16, 1283355), (18, 1140760), (19, 1080720), (20, 1026684), (24, 855570), (30, 684456), (36, 570380), (38, 540360), (40, 513342), (45, 456304), (48, 427785), (57, 360240), (60, 342228), (72, 285190), (76, 270180), (79, 259920), (80, 256671), (90, 228152), (95, 216144), (114, 180120), (120, 171114), (144, 142595), (152, 135090), (158, 129960), (171, 120080), (180, 114076), (190, 108072), (228, 90060), (237, 86640), (240, 85557), (285, 72048), (304, 67545), (316, 64980), (342, 60040), (360, 57038), (361, 56880), (380, 54036), (395, 51984), (456, 45030), (474, 43320), (570, 36024), (632, 32490), (684, 30020), (711, 28880), (720, 28519), (722, 28440), (760, 27018), (790, 25992), (855, 24016), (912, 22515), (948, 21660), (1083, 18960), (1140, 18012), (1185, 17328), (1264, 16245), (1368, 15010), (1422, 14440), (1444, 14220), (1501, 13680), (1520, 13509), (1580, 12996), (1710, 12008), (1805, 11376), (1896, 10830), (2166, 9480), (2280, 9006), (2370, 8664), (2736, 7505), (2844, 7220), (2888, 7110), (3002, 6840), (3160, 6498), (3249, 6320), (3420, 6004), (3555, 5776), (3610, 5688), (3792, 5415), (4332, 4740), (4503, 4560)]