678288525

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^2$

素因数の和:323

約数の個数: 72

約数和(自身を含む): 1235135232

約数和(自身を除く): 556846707

約数列:

[1, 3, 5, 15, 17, 25, 31, 51, 75, 85, 93, 131, 155, 255, 393, 425, 465, 527, 655, 775, 1275, 1581, 1965, 2227, 2325, 2635, 3275, 4061, 6681, 7905, 9825, 11135, 12183, 13175, 17161, 20305, 33405, 39525, 51483, 55675, 60915, 69037, 85805, 101525, 167025, 207111, 257415, 291737, 304575, 345185, 429025, 531991, 875211, 1035555, 1287075, 1458685, 1595973, 1725925, 2659955, 4376055, 5177775, 7293425, 7979865, 9043847, 13299775, 21880275, 27131541, 39899325, 45219235, 135657705, 226096175, 678288525]

約数ペア:

[(1, 678288525), (3, 226096175), (5, 135657705), (15, 45219235), (17, 39899325), (25, 27131541), (31, 21880275), (51, 13299775), (75, 9043847), (85, 7979865), (93, 7293425), (131, 5177775), (155, 4376055), (255, 2659955), (393, 1725925), (425, 1595973), (465, 1458685), (527, 1287075), (655, 1035555), (775, 875211), (1275, 531991), (1581, 429025), (1965, 345185), (2227, 304575), (2325, 291737), (2635, 257415), (3275, 207111), (4061, 167025), (6681, 101525), (7905, 85805), (9825, 69037), (11135, 60915), (12183, 55675), (13175, 51483), (17161, 39525), (20305, 33405)]