28719640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:137

約数の個数: 128

約数和(自身を含む): 74649600

約数和(自身を除く): 45929960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 23, 31, 38, 40, 46, 53, 62, 76, 92, 95, 106, 115, 124, 152, 155, 184, 190, 212, 230, 248, 265, 310, 380, 424, 437, 460, 530, 589, 620, 713, 760, 874, 920, 1007, 1060, 1178, 1219, 1240, 1426, 1643, 1748, 2014, 2120, 2185, 2356, 2438, 2852, 2945, 3286, 3496, 3565, 4028, 4370, 4712, 4876, 5035, 5704, 5890, 6095, 6572, 7130, 8056, 8215, 8740, 9752, 10070, 11780, 12190, 13144, 13547, 14260, 16430, 17480, 20140, 23161, 23560, 24380, 27094, 28520, 31217, 32860, 37789, 40280, 46322, 48760, 54188, 62434, 65720, 67735, 75578, 92644, 108376, 115805, 124868, 135470, 151156, 156085, 185288, 188945, 231610, 249736, 270940, 302312, 312170, 377890, 463220, 541880, 624340, 717991, 755780, 926440, 1248680, 1435982, 1511560, 2871964, 3589955, 5743928, 7179910, 14359820, 28719640]

約数ペア:

[(1, 28719640), (2, 14359820), (4, 7179910), (5, 5743928), (8, 3589955), (10, 2871964), (19, 1511560), (20, 1435982), (23, 1248680), (31, 926440), (38, 755780), (40, 717991), (46, 624340), (53, 541880), (62, 463220), (76, 377890), (92, 312170), (95, 302312), (106, 270940), (115, 249736), (124, 231610), (152, 188945), (155, 185288), (184, 156085), (190, 151156), (212, 135470), (230, 124868), (248, 115805), (265, 108376), (310, 92644), (380, 75578), (424, 67735), (437, 65720), (460, 62434), (530, 54188), (589, 48760), (620, 46322), (713, 40280), (760, 37789), (874, 32860), (920, 31217), (1007, 28520), (1060, 27094), (1178, 24380), (1219, 23560), (1240, 23161), (1426, 20140), (1643, 17480), (1748, 16430), (2014, 14260), (2120, 13547), (2185, 13144), (2356, 12190), (2438, 11780), (2852, 10070), (2945, 9752), (3286, 8740), (3496, 8215), (3565, 8056), (4028, 7130), (4370, 6572), (4712, 6095), (4876, 5890), (5035, 5704)]