19033960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{239}}^1$

素因数の和:442

約数の個数: 64

約数和(自身を含む): 47174400

約数和(自身を除く): 28140440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 181, 220, 239, 362, 440, 478, 724, 905, 956, 1195, 1448, 1810, 1912, 1991, 2390, 2629, 3620, 3982, 4780, 5258, 7240, 7964, 9560, 9955, 10516, 13145, 15928, 19910, 21032, 26290, 39820, 43259, 52580, 79640, 86518, 105160, 173036, 216295, 346072, 432590, 475849, 865180, 951698, 1730360, 1903396, 2379245, 3806792, 4758490, 9516980, 19033960]

約数ペア:

[(1, 19033960), (2, 9516980), (4, 4758490), (5, 3806792), (8, 2379245), (10, 1903396), (11, 1730360), (20, 951698), (22, 865180), (40, 475849), (44, 432590), (55, 346072), (88, 216295), (110, 173036), (181, 105160), (220, 86518), (239, 79640), (362, 52580), (440, 43259), (478, 39820), (724, 26290), (905, 21032), (956, 19910), (1195, 15928), (1448, 13145), (1810, 10516), (1912, 9955), (1991, 9560), (2390, 7964), (2629, 7240), (3620, 5258), (3982, 4780)]