20581968

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2293}}^1$

素因数の和:2332

約数の個数: 80

約数和(自身を含む): 61442496

約数和(自身を除く): 40860528

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 17, 22, 24, 33, 34, 44, 48, 51, 66, 68, 88, 102, 132, 136, 176, 187, 204, 264, 272, 374, 408, 528, 561, 748, 816, 1122, 1496, 2244, 2293, 2992, 4488, 4586, 6879, 8976, 9172, 13758, 18344, 25223, 27516, 36688, 38981, 50446, 55032, 75669, 77962, 100892, 110064, 116943, 151338, 155924, 201784, 233886, 302676, 311848, 403568, 428791, 467772, 605352, 623696, 857582, 935544, 1210704, 1286373, 1715164, 1871088, 2572746, 3430328, 5145492, 6860656, 10290984, 20581968]

約数ペア:

[(1, 20581968), (2, 10290984), (3, 6860656), (4, 5145492), (6, 3430328), (8, 2572746), (11, 1871088), (12, 1715164), (16, 1286373), (17, 1210704), (22, 935544), (24, 857582), (33, 623696), (34, 605352), (44, 467772), (48, 428791), (51, 403568), (66, 311848), (68, 302676), (88, 233886), (102, 201784), (132, 155924), (136, 151338), (176, 116943), (187, 110064), (204, 100892), (264, 77962), (272, 75669), (374, 55032), (408, 50446), (528, 38981), (561, 36688), (748, 27516), (816, 25223), (1122, 18344), (1496, 13758), (2244, 9172), (2293, 8976), (2992, 6879), (4488, 4586)]