20122180480

素因数分解:

$2^7\times 5^1\times {\mathrm{163}}^1\times {\mathrm{192889}}^1$

素因数の和:193071

約数の個数: 64

約数和(自身を含む): 48399958800

約数和(自身を除く): 28277778320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 163, 320, 326, 640, 652, 815, 1304, 1630, 2608, 3260, 5216, 6520, 10432, 13040, 20864, 26080, 52160, 104320, 192889, 385778, 771556, 964445, 1543112, 1928890, 3086224, 3857780, 6172448, 7715560, 12344896, 15431120, 24689792, 30862240, 31440907, 61724480, 62881814, 123448960, 125763628, 157204535, 251527256, 314409070, 503054512, 628818140, 1006109024, 1257636280, 2012218048, 2515272560, 4024436096, 5030545120, 10061090240, 20122180480]

約数ペア:

[(1, 20122180480), (2, 10061090240), (4, 5030545120), (5, 4024436096), (8, 2515272560), (10, 2012218048), (16, 1257636280), (20, 1006109024), (32, 628818140), (40, 503054512), (64, 314409070), (80, 251527256), (128, 157204535), (160, 125763628), (163, 123448960), (320, 62881814), (326, 61724480), (640, 31440907), (652, 30862240), (815, 24689792), (1304, 15431120), (1630, 12344896), (2608, 7715560), (3260, 6172448), (5216, 3857780), (6520, 3086224), (10432, 1928890), (13040, 1543112), (20864, 964445), (26080, 771556), (52160, 385778), (104320, 192889)]