31249790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{41}}^2$

素因数の和:126

約数の個数: 72

約数和(自身を含む): 68106744

約数和(自身を除く): 36856954

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 41, 55, 65, 82, 110, 130, 143, 169, 205, 286, 338, 410, 451, 533, 715, 845, 902, 1066, 1430, 1681, 1690, 1859, 2255, 2665, 3362, 3718, 4510, 5330, 5863, 6929, 8405, 9295, 11726, 13858, 16810, 18491, 18590, 21853, 29315, 34645, 36982, 43706, 58630, 69290, 76219, 92455, 109265, 152438, 184910, 218530, 240383, 284089, 381095, 480766, 568178, 762190, 1201915, 1420445, 2403830, 2840890, 3124979, 6249958, 15624895, 31249790]

約数ペア:

[(1, 31249790), (2, 15624895), (5, 6249958), (10, 3124979), (11, 2840890), (13, 2403830), (22, 1420445), (26, 1201915), (41, 762190), (55, 568178), (65, 480766), (82, 381095), (110, 284089), (130, 240383), (143, 218530), (169, 184910), (205, 152438), (286, 109265), (338, 92455), (410, 76219), (451, 69290), (533, 58630), (715, 43706), (845, 36982), (902, 34645), (1066, 29315), (1430, 21853), (1681, 18590), (1690, 18491), (1859, 16810), (2255, 13858), (2665, 11726), (3362, 9295), (3718, 8405), (4510, 6929), (5330, 5863)]