31006250

素因数分解:

$2^1\times 5^5\times {\mathrm{11}}^2\times {\mathrm{41}}^1$

素因数の和:90

約数の個数: 72

約数和(自身を含む): 65456748

約数和(自身を除く): 34450498

約数列:

[1, 2, 5, 10, 11, 22, 25, 41, 50, 55, 82, 110, 121, 125, 205, 242, 250, 275, 410, 451, 550, 605, 625, 902, 1025, 1210, 1250, 1375, 2050, 2255, 2750, 3025, 3125, 4510, 4961, 5125, 6050, 6250, 6875, 9922, 10250, 11275, 13750, 15125, 22550, 24805, 25625, 30250, 34375, 49610, 51250, 56375, 68750, 75625, 112750, 124025, 128125, 151250, 248050, 256250, 281875, 378125, 563750, 620125, 756250, 1240250, 1409375, 2818750, 3100625, 6201250, 15503125, 31006250]

約数ペア:

[(1, 31006250), (2, 15503125), (5, 6201250), (10, 3100625), (11, 2818750), (22, 1409375), (25, 1240250), (41, 756250), (50, 620125), (55, 563750), (82, 378125), (110, 281875), (121, 256250), (125, 248050), (205, 151250), (242, 128125), (250, 124025), (275, 112750), (410, 75625), (451, 68750), (550, 56375), (605, 51250), (625, 49610), (902, 34375), (1025, 30250), (1210, 25625), (1250, 24805), (1375, 22550), (2050, 15125), (2255, 13750), (2750, 11275), (3025, 10250), (3125, 9922), (4510, 6875), (4961, 6250), (5125, 6050)]