20702464

素因数分解:

$2^8\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:171

約数の個数: 72

約数和(自身を含む): 45033408

約数和(自身を除く): 24330944

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 67, 68, 71, 128, 134, 136, 142, 256, 268, 272, 284, 536, 544, 568, 1072, 1088, 1136, 1139, 1207, 2144, 2176, 2272, 2278, 2414, 4288, 4352, 4544, 4556, 4757, 4828, 8576, 9088, 9112, 9514, 9656, 17152, 18176, 18224, 19028, 19312, 36448, 38056, 38624, 72896, 76112, 77248, 80869, 145792, 152224, 154496, 161738, 291584, 304448, 308992, 323476, 608896, 646952, 1217792, 1293904, 2587808, 5175616, 10351232, 20702464]

約数ペア:

[(1, 20702464), (2, 10351232), (4, 5175616), (8, 2587808), (16, 1293904), (17, 1217792), (32, 646952), (34, 608896), (64, 323476), (67, 308992), (68, 304448), (71, 291584), (128, 161738), (134, 154496), (136, 152224), (142, 145792), (256, 80869), (268, 77248), (272, 76112), (284, 72896), (536, 38624), (544, 38056), (568, 36448), (1072, 19312), (1088, 19028), (1136, 18224), (1139, 18176), (1207, 17152), (2144, 9656), (2176, 9514), (2272, 9112), (2278, 9088), (2414, 8576), (4288, 4828), (4352, 4757), (4544, 4556)]