209810325

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:187

約数の個数: 72

約数和(自身を含む): 372351168

約数和(自身を除く): 162540843

約数列:

[1, 3, 5, 15, 25, 31, 41, 71, 75, 93, 123, 155, 205, 213, 355, 465, 615, 775, 961, 1025, 1065, 1271, 1775, 2201, 2325, 2883, 2911, 3075, 3813, 4805, 5325, 6355, 6603, 8733, 11005, 14415, 14555, 19065, 24025, 31775, 33015, 39401, 43665, 55025, 68231, 72075, 72775, 90241, 95325, 118203, 165075, 197005, 204693, 218325, 270723, 341155, 451205, 591015, 985025, 1023465, 1353615, 1705775, 2256025, 2797471, 2955075, 5117325, 6768075, 8392413, 13987355, 41962065, 69936775, 209810325]

約数ペア:

[(1, 209810325), (3, 69936775), (5, 41962065), (15, 13987355), (25, 8392413), (31, 6768075), (41, 5117325), (71, 2955075), (75, 2797471), (93, 2256025), (123, 1705775), (155, 1353615), (205, 1023465), (213, 985025), (355, 591015), (465, 451205), (615, 341155), (775, 270723), (961, 218325), (1025, 204693), (1065, 197005), (1271, 165075), (1775, 118203), (2201, 95325), (2325, 90241), (2883, 72775), (2911, 72075), (3075, 68231), (3813, 55025), (4805, 43665), (5325, 39401), (6355, 33015), (6603, 31775), (8733, 24025), (11005, 19065), (14415, 14555)]