21102720

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{379}}^1$

素因数の和:430

約数の個数: 128

約数和(自身を含む): 69768000

約数和(自身を除く): 48665280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 29, 30, 32, 40, 48, 58, 60, 64, 80, 87, 96, 116, 120, 128, 145, 160, 174, 192, 232, 240, 290, 320, 348, 379, 384, 435, 464, 480, 580, 640, 696, 758, 870, 928, 960, 1137, 1160, 1392, 1516, 1740, 1856, 1895, 1920, 2274, 2320, 2784, 3032, 3480, 3712, 3790, 4548, 4640, 5568, 5685, 6064, 6960, 7580, 9096, 9280, 10991, 11136, 11370, 12128, 13920, 15160, 18192, 18560, 21982, 22740, 24256, 27840, 30320, 32973, 36384, 43964, 45480, 48512, 54955, 55680, 60640, 65946, 72768, 87928, 90960, 109910, 121280, 131892, 145536, 164865, 175856, 181920, 219820, 242560, 263784, 329730, 351712, 363840, 439640, 527568, 659460, 703424, 727680, 879280, 1055136, 1318920, 1406848, 1758560, 2110272, 2637840, 3517120, 4220544, 5275680, 7034240, 10551360, 21102720]

約数ペア:

[(1, 21102720), (2, 10551360), (3, 7034240), (4, 5275680), (5, 4220544), (6, 3517120), (8, 2637840), (10, 2110272), (12, 1758560), (15, 1406848), (16, 1318920), (20, 1055136), (24, 879280), (29, 727680), (30, 703424), (32, 659460), (40, 527568), (48, 439640), (58, 363840), (60, 351712), (64, 329730), (80, 263784), (87, 242560), (96, 219820), (116, 181920), (120, 175856), (128, 164865), (145, 145536), (160, 131892), (174, 121280), (192, 109910), (232, 90960), (240, 87928), (290, 72768), (320, 65946), (348, 60640), (379, 55680), (384, 54955), (435, 48512), (464, 45480), (480, 43964), (580, 36384), (640, 32973), (696, 30320), (758, 27840), (870, 24256), (928, 22740), (960, 21982), (1137, 18560), (1160, 18192), (1392, 15160), (1516, 13920), (1740, 12128), (1856, 11370), (1895, 11136), (1920, 10991), (2274, 9280), (2320, 9096), (2784, 7580), (3032, 6960), (3480, 6064), (3712, 5685), (3790, 5568), (4548, 4640)]