19191520

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1$

素因数の和:200

約数の個数: 96

約数和(自身を含む): 48988800

約数和(自身を除く): 29797280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 59, 76, 80, 95, 107, 118, 152, 160, 190, 214, 236, 295, 304, 380, 428, 472, 535, 590, 608, 760, 856, 944, 1070, 1121, 1180, 1520, 1712, 1888, 2033, 2140, 2242, 2360, 3040, 3424, 4066, 4280, 4484, 4720, 5605, 6313, 8132, 8560, 8968, 9440, 10165, 11210, 12626, 16264, 17120, 17936, 20330, 22420, 25252, 31565, 32528, 35872, 40660, 44840, 50504, 63130, 65056, 81320, 89680, 101008, 119947, 126260, 162640, 179360, 202016, 239894, 252520, 325280, 479788, 505040, 599735, 959576, 1010080, 1199470, 1919152, 2398940, 3838304, 4797880, 9595760, 19191520]

約数ペア:

[(1, 19191520), (2, 9595760), (4, 4797880), (5, 3838304), (8, 2398940), (10, 1919152), (16, 1199470), (19, 1010080), (20, 959576), (32, 599735), (38, 505040), (40, 479788), (59, 325280), (76, 252520), (80, 239894), (95, 202016), (107, 179360), (118, 162640), (152, 126260), (160, 119947), (190, 101008), (214, 89680), (236, 81320), (295, 65056), (304, 63130), (380, 50504), (428, 44840), (472, 40660), (535, 35872), (590, 32528), (608, 31565), (760, 25252), (856, 22420), (944, 20330), (1070, 17936), (1121, 17120), (1180, 16264), (1520, 12626), (1712, 11210), (1888, 10165), (2033, 9440), (2140, 8968), (2242, 8560), (2360, 8132), (3040, 6313), (3424, 5605), (4066, 4720), (4280, 4484)]