1801471700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{135449}}^1$

素因数の和:135489

約数の個数: 72

約数和(自身を含む): 4702824000

約数和(自身を除く): 2901352300

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 25, 28, 35, 38, 50, 70, 76, 95, 100, 133, 140, 175, 190, 266, 350, 380, 475, 532, 665, 700, 950, 1330, 1900, 2660, 3325, 6650, 13300, 135449, 270898, 541796, 677245, 948143, 1354490, 1896286, 2573531, 2708980, 3386225, 3792572, 4740715, 5147062, 6772450, 9481430, 10294124, 12867655, 13544900, 18014717, 18962860, 23703575, 25735310, 36029434, 47407150, 51470620, 64338275, 72058868, 90073585, 94814300, 128676550, 180147170, 257353100, 360294340, 450367925, 900735850, 1801471700]

約数ペア:

[(1, 1801471700), (2, 900735850), (4, 450367925), (5, 360294340), (7, 257353100), (10, 180147170), (14, 128676550), (19, 94814300), (20, 90073585), (25, 72058868), (28, 64338275), (35, 51470620), (38, 47407150), (50, 36029434), (70, 25735310), (76, 23703575), (95, 18962860), (100, 18014717), (133, 13544900), (140, 12867655), (175, 10294124), (190, 9481430), (266, 6772450), (350, 5147062), (380, 4740715), (475, 3792572), (532, 3386225), (665, 2708980), (700, 2573531), (950, 1896286), (1330, 1354490), (1900, 948143), (2660, 677245), (3325, 541796), (6650, 270898), (13300, 135449)]