221195416

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:249

約数の個数: 128

約数和(自身を含む): 509644800

約数和(自身を除く): 288449384

約数列:

[1, 2, 4, 8, 13, 19, 23, 26, 31, 38, 46, 52, 62, 76, 92, 104, 124, 152, 157, 184, 247, 248, 299, 314, 403, 437, 494, 589, 598, 628, 713, 806, 874, 988, 1178, 1196, 1256, 1426, 1612, 1748, 1976, 2041, 2356, 2392, 2852, 2983, 3224, 3496, 3611, 4082, 4712, 4867, 5681, 5704, 5966, 7222, 7657, 8164, 9269, 9734, 11362, 11932, 13547, 14444, 15314, 16328, 18538, 19468, 22724, 23864, 27094, 28888, 30628, 37076, 38779, 38936, 45448, 46943, 54188, 61256, 63271, 68609, 74152, 77558, 92473, 93886, 108376, 111941, 126542, 137218, 155116, 176111, 184946, 187772, 223882, 253084, 274436, 310232, 352222, 369892, 375544, 447764, 506168, 548872, 704444, 739784, 891917, 895528, 1202149, 1408888, 1455233, 1783834, 2126879, 2404298, 2910466, 3567668, 4253758, 4808596, 5820932, 7135336, 8507516, 9617192, 11641864, 17015032, 27649427, 55298854, 110597708, 221195416]

約数ペア:

[(1, 221195416), (2, 110597708), (4, 55298854), (8, 27649427), (13, 17015032), (19, 11641864), (23, 9617192), (26, 8507516), (31, 7135336), (38, 5820932), (46, 4808596), (52, 4253758), (62, 3567668), (76, 2910466), (92, 2404298), (104, 2126879), (124, 1783834), (152, 1455233), (157, 1408888), (184, 1202149), (247, 895528), (248, 891917), (299, 739784), (314, 704444), (403, 548872), (437, 506168), (494, 447764), (589, 375544), (598, 369892), (628, 352222), (713, 310232), (806, 274436), (874, 253084), (988, 223882), (1178, 187772), (1196, 184946), (1256, 176111), (1426, 155116), (1612, 137218), (1748, 126542), (1976, 111941), (2041, 108376), (2356, 93886), (2392, 92473), (2852, 77558), (2983, 74152), (3224, 68609), (3496, 63271), (3611, 61256), (4082, 54188), (4712, 46943), (4867, 45448), (5681, 38936), (5704, 38779), (5966, 37076), (7222, 30628), (7657, 28888), (8164, 27094), (9269, 23864), (9734, 22724), (11362, 19468), (11932, 18538), (13547, 16328), (14444, 15314)]