18878020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1$

素因数の和:233

約数の個数: 96

約数和(自身を含む): 49029120

約数和(自身を除く): 30151100

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 47, 70, 76, 94, 95, 133, 140, 151, 188, 190, 235, 266, 302, 329, 380, 470, 532, 604, 658, 665, 755, 893, 940, 1057, 1316, 1330, 1510, 1645, 1786, 2114, 2660, 2869, 3020, 3290, 3572, 4228, 4465, 5285, 5738, 6251, 6580, 7097, 8930, 10570, 11476, 12502, 14194, 14345, 17860, 20083, 21140, 25004, 28388, 28690, 31255, 35485, 40166, 49679, 57380, 62510, 70970, 80332, 99358, 100415, 125020, 134843, 141940, 198716, 200830, 248395, 269686, 401660, 496790, 539372, 674215, 943901, 993580, 1348430, 1887802, 2696860, 3775604, 4719505, 9439010, 18878020]

約数ペア:

[(1, 18878020), (2, 9439010), (4, 4719505), (5, 3775604), (7, 2696860), (10, 1887802), (14, 1348430), (19, 993580), (20, 943901), (28, 674215), (35, 539372), (38, 496790), (47, 401660), (70, 269686), (76, 248395), (94, 200830), (95, 198716), (133, 141940), (140, 134843), (151, 125020), (188, 100415), (190, 99358), (235, 80332), (266, 70970), (302, 62510), (329, 57380), (380, 49679), (470, 40166), (532, 35485), (604, 31255), (658, 28690), (665, 28388), (755, 25004), (893, 21140), (940, 20083), (1057, 17860), (1316, 14345), (1330, 14194), (1510, 12502), (1645, 11476), (1786, 10570), (2114, 8930), (2660, 7097), (2869, 6580), (3020, 6251), (3290, 5738), (3572, 5285), (4228, 4465)]