20541664

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^2$

素因数の和:168

約数の個数: 72

約数和(自身を含む): 48231288

約数和(自身を除く): 27689624

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 32, 44, 52, 67, 88, 104, 134, 143, 176, 208, 268, 286, 352, 416, 536, 572, 737, 871, 1072, 1144, 1474, 1742, 2144, 2288, 2948, 3484, 4489, 4576, 5896, 6968, 8978, 9581, 11792, 13936, 17956, 19162, 23584, 27872, 35912, 38324, 49379, 58357, 71824, 76648, 98758, 116714, 143648, 153296, 197516, 233428, 306592, 395032, 466856, 641927, 790064, 933712, 1283854, 1580128, 1867424, 2567708, 5135416, 10270832, 20541664]

約数ペア:

[(1, 20541664), (2, 10270832), (4, 5135416), (8, 2567708), (11, 1867424), (13, 1580128), (16, 1283854), (22, 933712), (26, 790064), (32, 641927), (44, 466856), (52, 395032), (67, 306592), (88, 233428), (104, 197516), (134, 153296), (143, 143648), (176, 116714), (208, 98758), (268, 76648), (286, 71824), (352, 58357), (416, 49379), (536, 38324), (572, 35912), (737, 27872), (871, 23584), (1072, 19162), (1144, 17956), (1474, 13936), (1742, 11792), (2144, 9581), (2288, 8978), (2948, 6968), (3484, 5896), (4489, 4576)]