28918428

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{263}}^1$

素因数の和:312

約数の個数: 144

約数和(自身を含む): 91010304

約数和(自身を除く): 62091876

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 17, 21, 22, 28, 33, 34, 42, 44, 49, 51, 66, 68, 77, 84, 98, 102, 119, 132, 147, 154, 187, 196, 204, 231, 238, 263, 294, 308, 357, 374, 462, 476, 526, 539, 561, 588, 714, 748, 789, 833, 924, 1052, 1078, 1122, 1309, 1428, 1578, 1617, 1666, 1841, 2156, 2244, 2499, 2618, 2893, 3156, 3234, 3332, 3682, 3927, 4471, 4998, 5236, 5523, 5786, 6468, 7364, 7854, 8679, 8942, 9163, 9996, 11046, 11572, 12887, 13413, 15708, 17358, 17884, 18326, 20251, 22092, 25774, 26826, 27489, 31297, 34716, 36652, 38661, 40502, 49181, 51548, 53652, 54978, 60753, 62594, 77322, 81004, 93891, 98362, 109956, 121506, 125188, 141757, 147543, 154644, 187782, 196724, 219079, 243012, 283514, 295086, 344267, 375564, 425271, 438158, 567028, 590172, 657237, 688534, 850542, 876316, 1032801, 1314474, 1377068, 1701084, 2065602, 2409869, 2628948, 4131204, 4819738, 7229607, 9639476, 14459214, 28918428]

約数ペア:

[(1, 28918428), (2, 14459214), (3, 9639476), (4, 7229607), (6, 4819738), (7, 4131204), (11, 2628948), (12, 2409869), (14, 2065602), (17, 1701084), (21, 1377068), (22, 1314474), (28, 1032801), (33, 876316), (34, 850542), (42, 688534), (44, 657237), (49, 590172), (51, 567028), (66, 438158), (68, 425271), (77, 375564), (84, 344267), (98, 295086), (102, 283514), (119, 243012), (132, 219079), (147, 196724), (154, 187782), (187, 154644), (196, 147543), (204, 141757), (231, 125188), (238, 121506), (263, 109956), (294, 98362), (308, 93891), (357, 81004), (374, 77322), (462, 62594), (476, 60753), (526, 54978), (539, 53652), (561, 51548), (588, 49181), (714, 40502), (748, 38661), (789, 36652), (833, 34716), (924, 31297), (1052, 27489), (1078, 26826), (1122, 25774), (1309, 22092), (1428, 20251), (1578, 18326), (1617, 17884), (1666, 17358), (1841, 15708), (2156, 13413), (2244, 12887), (2499, 11572), (2618, 11046), (2893, 9996), (3156, 9163), (3234, 8942), (3332, 8679), (3682, 7854), (3927, 7364), (4471, 6468), (4998, 5786), (5236, 5523)]