20406531200

素因数分解:

$2^7\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{18701}}^1$

素因数の和:18767

約数の個数: 192

約数和(自身を含む): 56770295040

約数和(自身を除く): 36363763840

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 31, 32, 40, 44, 50, 55, 62, 64, 80, 88, 100, 110, 124, 128, 155, 160, 176, 200, 220, 248, 275, 310, 320, 341, 352, 400, 440, 496, 550, 620, 640, 682, 704, 775, 800, 880, 992, 1100, 1240, 1364, 1408, 1550, 1600, 1705, 1760, 1984, 2200, 2480, 2728, 3100, 3200, 3410, 3520, 3968, 4400, 4960, 5456, 6200, 6820, 7040, 8525, 8800, 9920, 10912, 12400, 13640, 17050, 17600, 18701, 19840, 21824, 24800, 27280, 34100, 35200, 37402, 43648, 49600, 54560, 68200, 74804, 93505, 99200, 109120, 136400, 149608, 187010, 205711, 218240, 272800, 299216, 374020, 411422, 467525, 545600, 579731, 598432, 748040, 822844, 935050, 1028555, 1091200, 1159462, 1196864, 1496080, 1645688, 1870100, 2057110, 2318924, 2393728, 2898655, 2992160, 3291376, 3740200, 4114220, 4637848, 5142775, 5797310, 5984320, 6377041, 6582752, 7480400, 8228440, 9275696, 10285550, 11594620, 11968640, 12754082, 13165504, 14493275, 14960800, 16456880, 18551392, 20571100, 23189240, 25508164, 26331008, 28986550, 29921600, 31885205, 32913760, 37102784, 41142200, 46378480, 51016328, 57973100, 59843200, 63770410, 65827520, 74205568, 82284400, 92756960, 102032656, 115946200, 127540820, 131655040, 159426025, 164568800, 185513920, 204065312, 231892400, 255081640, 318852050, 329137600, 371027840, 408130624, 463784800, 510163280, 637704100, 658275200, 816261248, 927569600, 1020326560, 1275408200, 1855139200, 2040653120, 2550816400, 4081306240, 5101632800, 10203265600, 20406531200]

約数ペア:

[(1, 20406531200), (2, 10203265600), (4, 5101632800), (5, 4081306240), (8, 2550816400), (10, 2040653120), (11, 1855139200), (16, 1275408200), (20, 1020326560), (22, 927569600), (25, 816261248), (31, 658275200), (32, 637704100), (40, 510163280), (44, 463784800), (50, 408130624), (55, 371027840), (62, 329137600), (64, 318852050), (80, 255081640), (88, 231892400), (100, 204065312), (110, 185513920), (124, 164568800), (128, 159426025), (155, 131655040), (160, 127540820), (176, 115946200), (200, 102032656), (220, 92756960), (248, 82284400), (275, 74205568), (310, 65827520), (320, 63770410), (341, 59843200), (352, 57973100), (400, 51016328), (440, 46378480), (496, 41142200), (550, 37102784), (620, 32913760), (640, 31885205), (682, 29921600), (704, 28986550), (775, 26331008), (800, 25508164), (880, 23189240), (992, 20571100), (1100, 18551392), (1240, 16456880), (1364, 14960800), (1408, 14493275), (1550, 13165504), (1600, 12754082), (1705, 11968640), (1760, 11594620), (1984, 10285550), (2200, 9275696), (2480, 8228440), (2728, 7480400), (3100, 6582752), (3200, 6377041), (3410, 5984320), (3520, 5797310), (3968, 5142775), (4400, 4637848), (4960, 4114220), (5456, 3740200), (6200, 3291376), (6820, 2992160), (7040, 2898655), (8525, 2393728), (8800, 2318924), (9920, 2057110), (10912, 1870100), (12400, 1645688), (13640, 1496080), (17050, 1196864), (17600, 1159462), (18701, 1091200), (19840, 1028555), (21824, 935050), (24800, 822844), (27280, 748040), (34100, 598432), (35200, 579731), (37402, 545600), (43648, 467525), (49600, 411422), (54560, 374020), (68200, 299216), (74804, 272800), (93505, 218240), (99200, 205711), (109120, 187010), (136400, 149608)]