155489800

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^2\times {\mathrm{809}}^1$

素因数の和:887

約数の個数: 72

約数和(自身を含む): 374013450

約数和(自身を除く): 218523650

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 155, 200, 248, 310, 620, 775, 809, 961, 1240, 1550, 1618, 1922, 3100, 3236, 3844, 4045, 4805, 6200, 6472, 7688, 8090, 9610, 16180, 19220, 20225, 24025, 25079, 32360, 38440, 40450, 48050, 50158, 80900, 96100, 100316, 125395, 161800, 192200, 200632, 250790, 501580, 626975, 777449, 1003160, 1253950, 1554898, 2507900, 3109796, 3887245, 5015800, 6219592, 7774490, 15548980, 19436225, 31097960, 38872450, 77744900, 155489800]

約数ペア:

[(1, 155489800), (2, 77744900), (4, 38872450), (5, 31097960), (8, 19436225), (10, 15548980), (20, 7774490), (25, 6219592), (31, 5015800), (40, 3887245), (50, 3109796), (62, 2507900), (100, 1554898), (124, 1253950), (155, 1003160), (200, 777449), (248, 626975), (310, 501580), (620, 250790), (775, 200632), (809, 192200), (961, 161800), (1240, 125395), (1550, 100316), (1618, 96100), (1922, 80900), (3100, 50158), (3236, 48050), (3844, 40450), (4045, 38440), (4805, 32360), (6200, 25079), (6472, 24025), (7688, 20225), (8090, 19220), (9610, 16180)]