20508733400

素因数分解:

$2^3\times 5^2\times {\mathrm{71}}^1\times {\mathrm{239}}^1\times {\mathrm{6043}}^1$

素因数の和:6369

約数の個数: 96

約数和(自身を含む): 48564748800

約数和(自身を除く): 28056015400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 71, 100, 142, 200, 239, 284, 355, 478, 568, 710, 956, 1195, 1420, 1775, 1912, 2390, 2840, 3550, 4780, 5975, 6043, 7100, 9560, 11950, 12086, 14200, 16969, 23900, 24172, 30215, 33938, 47800, 48344, 60430, 67876, 84845, 120860, 135752, 151075, 169690, 241720, 302150, 339380, 424225, 429053, 604300, 678760, 848450, 858106, 1208600, 1444277, 1696900, 1716212, 2145265, 2888554, 3393800, 3432424, 4290530, 5777108, 7221385, 8581060, 10726325, 11554216, 14442770, 17162120, 21452650, 28885540, 36106925, 42905300, 57771080, 72213850, 85810600, 102543667, 144427700, 205087334, 288855400, 410174668, 512718335, 820349336, 1025436670, 2050873340, 2563591675, 4101746680, 5127183350, 10254366700, 20508733400]

約数ペア:

[(1, 20508733400), (2, 10254366700), (4, 5127183350), (5, 4101746680), (8, 2563591675), (10, 2050873340), (20, 1025436670), (25, 820349336), (40, 512718335), (50, 410174668), (71, 288855400), (100, 205087334), (142, 144427700), (200, 102543667), (239, 85810600), (284, 72213850), (355, 57771080), (478, 42905300), (568, 36106925), (710, 28885540), (956, 21452650), (1195, 17162120), (1420, 14442770), (1775, 11554216), (1912, 10726325), (2390, 8581060), (2840, 7221385), (3550, 5777108), (4780, 4290530), (5975, 3432424), (6043, 3393800), (7100, 2888554), (9560, 2145265), (11950, 1716212), (12086, 1696900), (14200, 1444277), (16969, 1208600), (23900, 858106), (24172, 848450), (30215, 678760), (33938, 604300), (47800, 429053), (48344, 424225), (60430, 339380), (67876, 302150), (84845, 241720), (120860, 169690), (135752, 151075)]