28696480

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^2\times {\mathrm{97}}^1$

素因数の和:198

約数の個数: 72

約数和(自身を含む): 70124292

約数和(自身を除く): 41427812

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 97, 160, 172, 194, 215, 344, 388, 430, 485, 688, 776, 860, 970, 1376, 1552, 1720, 1849, 1940, 3104, 3440, 3698, 3880, 4171, 6880, 7396, 7760, 8342, 9245, 14792, 15520, 16684, 18490, 20855, 29584, 33368, 36980, 41710, 59168, 66736, 73960, 83420, 133472, 147920, 166840, 179353, 295840, 333680, 358706, 667360, 717412, 896765, 1434824, 1793530, 2869648, 3587060, 5739296, 7174120, 14348240, 28696480]

約数ペア:

[(1, 28696480), (2, 14348240), (4, 7174120), (5, 5739296), (8, 3587060), (10, 2869648), (16, 1793530), (20, 1434824), (32, 896765), (40, 717412), (43, 667360), (80, 358706), (86, 333680), (97, 295840), (160, 179353), (172, 166840), (194, 147920), (215, 133472), (344, 83420), (388, 73960), (430, 66736), (485, 59168), (688, 41710), (776, 36980), (860, 33368), (970, 29584), (1376, 20855), (1552, 18490), (1720, 16684), (1849, 15520), (1940, 14792), (3104, 9245), (3440, 8342), (3698, 7760), (3880, 7396), (4171, 6880)]