20938464

素因数分解:

$2^5\times 3^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1$

素因数の和:177

約数の個数: 144

約数和(自身を含む): 64864800

約数和(自身を除く): 43926336

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 29, 32, 36, 46, 48, 58, 69, 72, 87, 92, 96, 109, 116, 138, 144, 174, 184, 207, 218, 232, 261, 276, 288, 327, 348, 368, 414, 436, 464, 522, 552, 654, 667, 696, 736, 828, 872, 928, 981, 1044, 1104, 1308, 1334, 1392, 1656, 1744, 1962, 2001, 2088, 2208, 2507, 2616, 2668, 2784, 3161, 3312, 3488, 3924, 4002, 4176, 5014, 5232, 5336, 6003, 6322, 6624, 7521, 7848, 8004, 8352, 9483, 10028, 10464, 10672, 12006, 12644, 15042, 15696, 16008, 18966, 20056, 21344, 22563, 24012, 25288, 28449, 30084, 31392, 32016, 37932, 40112, 45126, 48024, 50576, 56898, 60168, 64032, 72703, 75864, 80224, 90252, 96048, 101152, 113796, 120336, 145406, 151728, 180504, 192096, 218109, 227592, 240672, 290812, 303456, 361008, 436218, 455184, 581624, 654327, 722016, 872436, 910368, 1163248, 1308654, 1744872, 2326496, 2617308, 3489744, 5234616, 6979488, 10469232, 20938464]

約数ペア:

[(1, 20938464), (2, 10469232), (3, 6979488), (4, 5234616), (6, 3489744), (8, 2617308), (9, 2326496), (12, 1744872), (16, 1308654), (18, 1163248), (23, 910368), (24, 872436), (29, 722016), (32, 654327), (36, 581624), (46, 455184), (48, 436218), (58, 361008), (69, 303456), (72, 290812), (87, 240672), (92, 227592), (96, 218109), (109, 192096), (116, 180504), (138, 151728), (144, 145406), (174, 120336), (184, 113796), (207, 101152), (218, 96048), (232, 90252), (261, 80224), (276, 75864), (288, 72703), (327, 64032), (348, 60168), (368, 56898), (414, 50576), (436, 48024), (464, 45126), (522, 40112), (552, 37932), (654, 32016), (667, 31392), (696, 30084), (736, 28449), (828, 25288), (872, 24012), (928, 22563), (981, 21344), (1044, 20056), (1104, 18966), (1308, 16008), (1334, 15696), (1392, 15042), (1656, 12644), (1744, 12006), (1962, 10672), (2001, 10464), (2088, 10028), (2208, 9483), (2507, 8352), (2616, 8004), (2668, 7848), (2784, 7521), (3161, 6624), (3312, 6322), (3488, 6003), (3924, 5336), (4002, 5232), (4176, 5014)]