28561428

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{113}}^1$

素因数の和:206

約数の個数: 144

約数和(自身を含む): 89631360

約数和(自身を除く): 61069932

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 21, 28, 34, 36, 42, 51, 59, 63, 68, 84, 102, 113, 118, 119, 126, 153, 177, 204, 226, 236, 238, 252, 306, 339, 354, 357, 413, 452, 476, 531, 612, 678, 708, 714, 791, 826, 1003, 1017, 1062, 1071, 1239, 1356, 1428, 1582, 1652, 1921, 2006, 2034, 2124, 2142, 2373, 2478, 3009, 3164, 3717, 3842, 4012, 4068, 4284, 4746, 4956, 5763, 6018, 6667, 7021, 7119, 7434, 7684, 9027, 9492, 11526, 12036, 13334, 13447, 14042, 14238, 14868, 17289, 18054, 20001, 21063, 23052, 26668, 26894, 28084, 28476, 34578, 36108, 40002, 40341, 42126, 46669, 53788, 60003, 63189, 69156, 80004, 80682, 84252, 93338, 113339, 120006, 121023, 126378, 140007, 161364, 186676, 226678, 240012, 242046, 252756, 280014, 340017, 420021, 453356, 484092, 560028, 680034, 793373, 840042, 1020051, 1360068, 1586746, 1680084, 2040102, 2380119, 3173492, 4080204, 4760238, 7140357, 9520476, 14280714, 28561428]

約数ペア:

[(1, 28561428), (2, 14280714), (3, 9520476), (4, 7140357), (6, 4760238), (7, 4080204), (9, 3173492), (12, 2380119), (14, 2040102), (17, 1680084), (18, 1586746), (21, 1360068), (28, 1020051), (34, 840042), (36, 793373), (42, 680034), (51, 560028), (59, 484092), (63, 453356), (68, 420021), (84, 340017), (102, 280014), (113, 252756), (118, 242046), (119, 240012), (126, 226678), (153, 186676), (177, 161364), (204, 140007), (226, 126378), (236, 121023), (238, 120006), (252, 113339), (306, 93338), (339, 84252), (354, 80682), (357, 80004), (413, 69156), (452, 63189), (476, 60003), (531, 53788), (612, 46669), (678, 42126), (708, 40341), (714, 40002), (791, 36108), (826, 34578), (1003, 28476), (1017, 28084), (1062, 26894), (1071, 26668), (1239, 23052), (1356, 21063), (1428, 20001), (1582, 18054), (1652, 17289), (1921, 14868), (2006, 14238), (2034, 14042), (2124, 13447), (2142, 13334), (2373, 12036), (2478, 11526), (3009, 9492), (3164, 9027), (3717, 7684), (3842, 7434), (4012, 7119), (4068, 7021), (4284, 6667), (4746, 6018), (4956, 5763)]