28128320

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:220

約数の個数: 112

約数和(自身を含む): 74834496

約数和(自身を除く): 46706176

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 61, 64, 80, 88, 110, 122, 131, 160, 176, 220, 244, 262, 305, 320, 352, 440, 488, 524, 610, 655, 671, 704, 880, 976, 1048, 1220, 1310, 1342, 1441, 1760, 1952, 2096, 2440, 2620, 2684, 2882, 3355, 3520, 3904, 4192, 4880, 5240, 5368, 5764, 6710, 7205, 7991, 8384, 9760, 10480, 10736, 11528, 13420, 14410, 15982, 19520, 20960, 21472, 23056, 26840, 28820, 31964, 39955, 41920, 42944, 46112, 53680, 57640, 63928, 79910, 87901, 92224, 107360, 115280, 127856, 159820, 175802, 214720, 230560, 255712, 319640, 351604, 439505, 461120, 511424, 639280, 703208, 879010, 1278560, 1406416, 1758020, 2557120, 2812832, 3516040, 5625664, 7032080, 14064160, 28128320]

約数ペア:

[(1, 28128320), (2, 14064160), (4, 7032080), (5, 5625664), (8, 3516040), (10, 2812832), (11, 2557120), (16, 1758020), (20, 1406416), (22, 1278560), (32, 879010), (40, 703208), (44, 639280), (55, 511424), (61, 461120), (64, 439505), (80, 351604), (88, 319640), (110, 255712), (122, 230560), (131, 214720), (160, 175802), (176, 159820), (220, 127856), (244, 115280), (262, 107360), (305, 92224), (320, 87901), (352, 79910), (440, 63928), (488, 57640), (524, 53680), (610, 46112), (655, 42944), (671, 41920), (704, 39955), (880, 31964), (976, 28820), (1048, 26840), (1220, 23056), (1310, 21472), (1342, 20960), (1441, 19520), (1760, 15982), (1952, 14410), (2096, 13420), (2440, 11528), (2620, 10736), (2684, 10480), (2882, 9760), (3355, 8384), (3520, 7991), (3904, 7205), (4192, 6710), (4880, 5764), (5240, 5368)]