30857940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{683}}^1$

素因数の和:949

約数の個数: 72

約数和(自身を含む): 94112928

約数和(自身を除く): 63254988

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 251, 502, 683, 753, 1004, 1255, 1366, 1506, 2049, 2259, 2510, 2732, 3012, 3415, 3765, 4098, 4518, 5020, 6147, 6830, 7530, 8196, 9036, 10245, 11295, 12294, 13660, 15060, 20490, 22590, 24588, 30735, 40980, 45180, 61470, 122940, 171433, 342866, 514299, 685732, 857165, 1028598, 1542897, 1714330, 2057196, 2571495, 3085794, 3428660, 5142990, 6171588, 7714485, 10285980, 15428970, 30857940]

約数ペア:

[(1, 30857940), (2, 15428970), (3, 10285980), (4, 7714485), (5, 6171588), (6, 5142990), (9, 3428660), (10, 3085794), (12, 2571495), (15, 2057196), (18, 1714330), (20, 1542897), (30, 1028598), (36, 857165), (45, 685732), (60, 514299), (90, 342866), (180, 171433), (251, 122940), (502, 61470), (683, 45180), (753, 40980), (1004, 30735), (1255, 24588), (1366, 22590), (1506, 20490), (2049, 15060), (2259, 13660), (2510, 12294), (2732, 11295), (3012, 10245), (3415, 9036), (3765, 8196), (4098, 7530), (4518, 6830), (5020, 6147)]