20328672

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{179}}^1$

素因数の和:225

約数の個数: 144

約数和(自身を含む): 66407040

約数和(自身を除く): 46078368

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 21, 24, 26, 28, 32, 39, 42, 48, 52, 56, 78, 84, 91, 96, 104, 112, 156, 168, 169, 179, 182, 208, 224, 273, 312, 336, 338, 358, 364, 416, 507, 537, 546, 624, 672, 676, 716, 728, 1014, 1074, 1092, 1183, 1248, 1253, 1352, 1432, 1456, 2028, 2148, 2184, 2327, 2366, 2506, 2704, 2864, 2912, 3549, 3759, 4056, 4296, 4368, 4654, 4732, 5012, 5408, 5728, 6981, 7098, 7518, 8112, 8592, 8736, 9308, 9464, 10024, 13962, 14196, 15036, 16224, 16289, 17184, 18616, 18928, 20048, 27924, 28392, 30072, 30251, 32578, 37232, 37856, 40096, 48867, 55848, 56784, 60144, 60502, 65156, 74464, 90753, 97734, 111696, 113568, 120288, 121004, 130312, 181506, 195468, 211757, 223392, 242008, 260624, 363012, 390936, 423514, 484016, 521248, 635271, 726024, 781872, 847028, 968032, 1270542, 1452048, 1563744, 1694056, 2541084, 2904096, 3388112, 5082168, 6776224, 10164336, 20328672]

約数ペア:

[(1, 20328672), (2, 10164336), (3, 6776224), (4, 5082168), (6, 3388112), (7, 2904096), (8, 2541084), (12, 1694056), (13, 1563744), (14, 1452048), (16, 1270542), (21, 968032), (24, 847028), (26, 781872), (28, 726024), (32, 635271), (39, 521248), (42, 484016), (48, 423514), (52, 390936), (56, 363012), (78, 260624), (84, 242008), (91, 223392), (96, 211757), (104, 195468), (112, 181506), (156, 130312), (168, 121004), (169, 120288), (179, 113568), (182, 111696), (208, 97734), (224, 90753), (273, 74464), (312, 65156), (336, 60502), (338, 60144), (358, 56784), (364, 55848), (416, 48867), (507, 40096), (537, 37856), (546, 37232), (624, 32578), (672, 30251), (676, 30072), (716, 28392), (728, 27924), (1014, 20048), (1074, 18928), (1092, 18616), (1183, 17184), (1248, 16289), (1253, 16224), (1352, 15036), (1432, 14196), (1456, 13962), (2028, 10024), (2148, 9464), (2184, 9308), (2327, 8736), (2366, 8592), (2506, 8112), (2704, 7518), (2864, 7098), (2912, 6981), (3549, 5728), (3759, 5408), (4056, 5012), (4296, 4732), (4368, 4654)]