20883888

素因数分解:

$2^4\times 3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{449}}^1$

素因数の和:499

約数の個数: 120

約数和(自身を含む): 65286000

約数和(自身を除く): 44402112

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 19, 24, 34, 36, 38, 48, 51, 57, 68, 72, 76, 102, 114, 136, 144, 152, 153, 171, 204, 228, 272, 304, 306, 323, 342, 408, 449, 456, 612, 646, 684, 816, 898, 912, 969, 1224, 1292, 1347, 1368, 1796, 1938, 2448, 2584, 2694, 2736, 2907, 3592, 3876, 4041, 5168, 5388, 5814, 7184, 7633, 7752, 8082, 8531, 10776, 11628, 15266, 15504, 16164, 17062, 21552, 22899, 23256, 25593, 30532, 32328, 34124, 45798, 46512, 51186, 61064, 64656, 68248, 68697, 76779, 91596, 102372, 122128, 136496, 137394, 145027, 153558, 183192, 204744, 274788, 290054, 307116, 366384, 409488, 435081, 549576, 580108, 614232, 870162, 1099152, 1160216, 1228464, 1305243, 1740324, 2320432, 2610486, 3480648, 5220972, 6961296, 10441944, 20883888]

約数ペア:

[(1, 20883888), (2, 10441944), (3, 6961296), (4, 5220972), (6, 3480648), (8, 2610486), (9, 2320432), (12, 1740324), (16, 1305243), (17, 1228464), (18, 1160216), (19, 1099152), (24, 870162), (34, 614232), (36, 580108), (38, 549576), (48, 435081), (51, 409488), (57, 366384), (68, 307116), (72, 290054), (76, 274788), (102, 204744), (114, 183192), (136, 153558), (144, 145027), (152, 137394), (153, 136496), (171, 122128), (204, 102372), (228, 91596), (272, 76779), (304, 68697), (306, 68248), (323, 64656), (342, 61064), (408, 51186), (449, 46512), (456, 45798), (612, 34124), (646, 32328), (684, 30532), (816, 25593), (898, 23256), (912, 22899), (969, 21552), (1224, 17062), (1292, 16164), (1347, 15504), (1368, 15266), (1796, 11628), (1938, 10776), (2448, 8531), (2584, 8082), (2694, 7752), (2736, 7633), (2907, 7184), (3592, 5814), (3876, 5388), (4041, 5168)]