25211264

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1$

素因数の和:275

約数の個数: 64

約数和(自身を含む): 54978000

約数和(自身を除く): 29766736

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 109, 128, 139, 208, 218, 278, 416, 436, 556, 832, 872, 1112, 1417, 1664, 1744, 1807, 2224, 2834, 3488, 3614, 4448, 5668, 6976, 7228, 8896, 11336, 13952, 14456, 15151, 17792, 22672, 28912, 30302, 45344, 57824, 60604, 90688, 115648, 121208, 181376, 196963, 231296, 242416, 393926, 484832, 787852, 969664, 1575704, 1939328, 3151408, 6302816, 12605632, 25211264]

約数ペア:

[(1, 25211264), (2, 12605632), (4, 6302816), (8, 3151408), (13, 1939328), (16, 1575704), (26, 969664), (32, 787852), (52, 484832), (64, 393926), (104, 242416), (109, 231296), (128, 196963), (139, 181376), (208, 121208), (218, 115648), (278, 90688), (416, 60604), (436, 57824), (556, 45344), (832, 30302), (872, 28912), (1112, 22672), (1417, 17792), (1664, 15151), (1744, 14456), (1807, 13952), (2224, 11336), (2834, 8896), (3488, 7228), (3614, 6976), (4448, 5668)]