21895706240

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{769}}^1\times {\mathrm{2617}}^1$

素因数の和:3422

約数の個数: 128

約数和(自身を含む): 55516784400

約数和(自身を除く): 33621078160

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 272, 320, 340, 544, 640, 680, 769, 1088, 1360, 1538, 2176, 2617, 2720, 3076, 3845, 5234, 5440, 6152, 7690, 10468, 10880, 12304, 13073, 13085, 15380, 20936, 24608, 26146, 26170, 30760, 41872, 44489, 49216, 52292, 52340, 61520, 65365, 83744, 88978, 98432, 104584, 104680, 123040, 130730, 167488, 177956, 209168, 209360, 222445, 246080, 261460, 334976, 355912, 418336, 418720, 444890, 492160, 522920, 711824, 836672, 837440, 889780, 1045840, 1423648, 1673344, 1674880, 1779560, 2012473, 2091680, 2847296, 3559120, 4024946, 4183360, 5694592, 7118240, 8049892, 8366720, 10062365, 14236480, 16099784, 20124730, 28472960, 32199568, 34212041, 40249460, 64399136, 68424082, 80498920, 128798272, 136848164, 160997840, 171060205, 257596544, 273696328, 321995680, 342120410, 547392656, 643991360, 684240820, 1094785312, 1287982720, 1368481640, 2189570624, 2736963280, 4379141248, 5473926560, 10947853120, 21895706240]

約数ペア:

[(1, 21895706240), (2, 10947853120), (4, 5473926560), (5, 4379141248), (8, 2736963280), (10, 2189570624), (16, 1368481640), (17, 1287982720), (20, 1094785312), (32, 684240820), (34, 643991360), (40, 547392656), (64, 342120410), (68, 321995680), (80, 273696328), (85, 257596544), (128, 171060205), (136, 160997840), (160, 136848164), (170, 128798272), (272, 80498920), (320, 68424082), (340, 64399136), (544, 40249460), (640, 34212041), (680, 32199568), (769, 28472960), (1088, 20124730), (1360, 16099784), (1538, 14236480), (2176, 10062365), (2617, 8366720), (2720, 8049892), (3076, 7118240), (3845, 5694592), (5234, 4183360), (5440, 4024946), (6152, 3559120), (7690, 2847296), (10468, 2091680), (10880, 2012473), (12304, 1779560), (13073, 1674880), (13085, 1673344), (15380, 1423648), (20936, 1045840), (24608, 889780), (26146, 837440), (26170, 836672), (30760, 711824), (41872, 522920), (44489, 492160), (49216, 444890), (52292, 418720), (52340, 418336), (61520, 355912), (65365, 334976), (83744, 261460), (88978, 246080), (98432, 222445), (104584, 209360), (104680, 209168), (123040, 177956), (130730, 167488)]