18728221952

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{3517}}^1$

素因数の和:3636

約数の個数: 144

約数和(自身を含む): 42799593984

約数和(自身を除く): 24071372032

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 44, 61, 62, 64, 88, 122, 124, 128, 176, 244, 248, 256, 341, 352, 488, 496, 671, 682, 704, 976, 992, 1342, 1364, 1408, 1891, 1952, 1984, 2684, 2728, 2816, 3517, 3782, 3904, 3968, 5368, 5456, 7034, 7564, 7808, 7936, 10736, 10912, 14068, 15128, 15616, 20801, 21472, 21824, 28136, 30256, 38687, 41602, 42944, 43648, 56272, 60512, 77374, 83204, 85888, 87296, 109027, 112544, 121024, 154748, 166408, 171776, 214537, 218054, 225088, 242048, 309496, 332816, 429074, 436108, 450176, 484096, 618992, 665632, 858148, 872216, 900352, 1199297, 1237984, 1331264, 1716296, 1744432, 2359907, 2398594, 2475968, 2662528, 3432592, 3488864, 4719814, 4797188, 4951936, 5325056, 6650647, 6865184, 6977728, 9439628, 9594376, 9903872, 13301294, 13730368, 13955456, 18879256, 19188752, 26602588, 27460736, 27910912, 37758512, 38377504, 53205176, 54921472, 73157117, 75517024, 76755008, 106410352, 146314234, 151034048, 153510016, 212820704, 292628468, 302068096, 307020032, 425641408, 585256936, 604136192, 851282816, 1170513872, 1702565632, 2341027744, 4682055488, 9364110976, 18728221952]

約数ペア:

[(1, 18728221952), (2, 9364110976), (4, 4682055488), (8, 2341027744), (11, 1702565632), (16, 1170513872), (22, 851282816), (31, 604136192), (32, 585256936), (44, 425641408), (61, 307020032), (62, 302068096), (64, 292628468), (88, 212820704), (122, 153510016), (124, 151034048), (128, 146314234), (176, 106410352), (244, 76755008), (248, 75517024), (256, 73157117), (341, 54921472), (352, 53205176), (488, 38377504), (496, 37758512), (671, 27910912), (682, 27460736), (704, 26602588), (976, 19188752), (992, 18879256), (1342, 13955456), (1364, 13730368), (1408, 13301294), (1891, 9903872), (1952, 9594376), (1984, 9439628), (2684, 6977728), (2728, 6865184), (2816, 6650647), (3517, 5325056), (3782, 4951936), (3904, 4797188), (3968, 4719814), (5368, 3488864), (5456, 3432592), (7034, 2662528), (7564, 2475968), (7808, 2398594), (7936, 2359907), (10736, 1744432), (10912, 1716296), (14068, 1331264), (15128, 1237984), (15616, 1199297), (20801, 900352), (21472, 872216), (21824, 858148), (28136, 665632), (30256, 618992), (38687, 484096), (41602, 450176), (42944, 436108), (43648, 429074), (56272, 332816), (60512, 309496), (77374, 242048), (83204, 225088), (85888, 218054), (87296, 214537), (109027, 171776), (112544, 166408), (121024, 154748)]