25573760

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1289}}^1$

素因数の和:1339

約数の個数: 64

約数和(自身を含む): 63158400

約数和(自身を除く): 37584640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1289, 1984, 2480, 2578, 3968, 4960, 5156, 6445, 9920, 10312, 12890, 19840, 20624, 25780, 39959, 41248, 51560, 79918, 82496, 103120, 159836, 164992, 199795, 206240, 319672, 399590, 412480, 639344, 799180, 824960, 1278688, 1598360, 2557376, 3196720, 5114752, 6393440, 12786880, 25573760]

約数ペア:

[(1, 25573760), (2, 12786880), (4, 6393440), (5, 5114752), (8, 3196720), (10, 2557376), (16, 1598360), (20, 1278688), (31, 824960), (32, 799180), (40, 639344), (62, 412480), (64, 399590), (80, 319672), (124, 206240), (128, 199795), (155, 164992), (160, 159836), (248, 103120), (310, 82496), (320, 79918), (496, 51560), (620, 41248), (640, 39959), (992, 25780), (1240, 20624), (1289, 19840), (1984, 12890), (2480, 10312), (2578, 9920), (3968, 6445), (4960, 5156)]