12978140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1$

素因数の和:100

約数の個数: 144

約数和(自身を含む): 36197280

約数和(自身を除く): 23219140

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 19, 20, 28, 34, 35, 38, 41, 49, 68, 70, 76, 82, 85, 95, 98, 119, 133, 140, 164, 170, 190, 196, 205, 238, 245, 266, 287, 323, 340, 380, 410, 476, 490, 532, 574, 595, 646, 665, 697, 779, 820, 833, 931, 980, 1148, 1190, 1292, 1330, 1394, 1435, 1558, 1615, 1666, 1862, 2009, 2261, 2380, 2660, 2788, 2870, 3116, 3230, 3332, 3485, 3724, 3895, 4018, 4165, 4522, 4655, 4879, 5453, 5740, 6460, 6970, 7790, 8036, 8330, 9044, 9310, 9758, 10045, 10906, 11305, 13243, 13940, 15580, 15827, 16660, 18620, 19516, 20090, 21812, 22610, 24395, 26486, 27265, 31654, 34153, 38171, 40180, 45220, 48790, 52972, 54530, 63308, 66215, 68306, 76342, 79135, 92701, 97580, 109060, 132430, 136612, 152684, 158270, 170765, 185402, 190855, 264860, 316540, 341530, 370804, 381710, 463505, 648907, 683060, 763420, 927010, 1297814, 1854020, 2595628, 3244535, 6489070, 12978140]

約数ペア:

[(1, 12978140), (2, 6489070), (4, 3244535), (5, 2595628), (7, 1854020), (10, 1297814), (14, 927010), (17, 763420), (19, 683060), (20, 648907), (28, 463505), (34, 381710), (35, 370804), (38, 341530), (41, 316540), (49, 264860), (68, 190855), (70, 185402), (76, 170765), (82, 158270), (85, 152684), (95, 136612), (98, 132430), (119, 109060), (133, 97580), (140, 92701), (164, 79135), (170, 76342), (190, 68306), (196, 66215), (205, 63308), (238, 54530), (245, 52972), (266, 48790), (287, 45220), (323, 40180), (340, 38171), (380, 34153), (410, 31654), (476, 27265), (490, 26486), (532, 24395), (574, 22610), (595, 21812), (646, 20090), (665, 19516), (697, 18620), (779, 16660), (820, 15827), (833, 15580), (931, 13940), (980, 13243), (1148, 11305), (1190, 10906), (1292, 10045), (1330, 9758), (1394, 9310), (1435, 9044), (1558, 8330), (1615, 8036), (1666, 7790), (1862, 6970), (2009, 6460), (2261, 5740), (2380, 5453), (2660, 4879), (2788, 4655), (2870, 4522), (3116, 4165), (3230, 4018), (3332, 3895), (3485, 3724)]