20484480

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{227}}^1$

素因数の和:296

約数の個数: 128

約数和(自身を含む): 66977280

約数和(自身を除く): 46492800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 47, 48, 60, 64, 80, 94, 96, 120, 128, 141, 160, 188, 192, 227, 235, 240, 282, 320, 376, 384, 454, 470, 480, 564, 640, 681, 705, 752, 908, 940, 960, 1128, 1135, 1362, 1410, 1504, 1816, 1880, 1920, 2256, 2270, 2724, 2820, 3008, 3405, 3632, 3760, 4512, 4540, 5448, 5640, 6016, 6810, 7264, 7520, 9024, 9080, 10669, 10896, 11280, 13620, 14528, 15040, 18048, 18160, 21338, 21792, 22560, 27240, 29056, 30080, 32007, 36320, 42676, 43584, 45120, 53345, 54480, 64014, 72640, 85352, 87168, 90240, 106690, 108960, 128028, 145280, 160035, 170704, 213380, 217920, 256056, 320070, 341408, 426760, 435840, 512112, 640140, 682816, 853520, 1024224, 1280280, 1365632, 1707040, 2048448, 2560560, 3414080, 4096896, 5121120, 6828160, 10242240, 20484480]

約数ペア:

[(1, 20484480), (2, 10242240), (3, 6828160), (4, 5121120), (5, 4096896), (6, 3414080), (8, 2560560), (10, 2048448), (12, 1707040), (15, 1365632), (16, 1280280), (20, 1024224), (24, 853520), (30, 682816), (32, 640140), (40, 512112), (47, 435840), (48, 426760), (60, 341408), (64, 320070), (80, 256056), (94, 217920), (96, 213380), (120, 170704), (128, 160035), (141, 145280), (160, 128028), (188, 108960), (192, 106690), (227, 90240), (235, 87168), (240, 85352), (282, 72640), (320, 64014), (376, 54480), (384, 53345), (454, 45120), (470, 43584), (480, 42676), (564, 36320), (640, 32007), (681, 30080), (705, 29056), (752, 27240), (908, 22560), (940, 21792), (960, 21338), (1128, 18160), (1135, 18048), (1362, 15040), (1410, 14528), (1504, 13620), (1816, 11280), (1880, 10896), (1920, 10669), (2256, 9080), (2270, 9024), (2724, 7520), (2820, 7264), (3008, 6810), (3405, 6016), (3632, 5640), (3760, 5448), (4512, 4540)]