20394220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1$

素因数の和:104

約数の個数: 192

約数和(自身を含む): 60963840

約数和(自身を除く): 40569620

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 17, 19, 20, 22, 28, 34, 35, 38, 41, 44, 55, 68, 70, 76, 77, 82, 85, 95, 110, 119, 133, 140, 154, 164, 170, 187, 190, 205, 209, 220, 238, 266, 287, 308, 323, 340, 374, 380, 385, 410, 418, 451, 476, 532, 574, 595, 646, 665, 697, 748, 770, 779, 820, 836, 902, 935, 1045, 1148, 1190, 1292, 1309, 1330, 1394, 1435, 1463, 1540, 1558, 1615, 1804, 1870, 2090, 2255, 2261, 2380, 2618, 2660, 2788, 2870, 2926, 3116, 3157, 3230, 3485, 3553, 3740, 3895, 4180, 4510, 4522, 4879, 5236, 5453, 5740, 5852, 6314, 6460, 6545, 6970, 7106, 7315, 7667, 7790, 8569, 9020, 9044, 9758, 10906, 11305, 12628, 13090, 13243, 13940, 14212, 14630, 15334, 15580, 15785, 17138, 17765, 19516, 21812, 22610, 24395, 24871, 26180, 26486, 27265, 29260, 30668, 31570, 34276, 35530, 38335, 42845, 45220, 48790, 49742, 52972, 53669, 54530, 59983, 63140, 66215, 71060, 76670, 85690, 92701, 97580, 99484, 107338, 109060, 119966, 124355, 132430, 145673, 153340, 171380, 185402, 214676, 239932, 248710, 264860, 268345, 291346, 299915, 370804, 463505, 497420, 536690, 582692, 599830, 728365, 927010, 1019711, 1073380, 1199660, 1456730, 1854020, 2039422, 2913460, 4078844, 5098555, 10197110, 20394220]

約数ペア:

[(1, 20394220), (2, 10197110), (4, 5098555), (5, 4078844), (7, 2913460), (10, 2039422), (11, 1854020), (14, 1456730), (17, 1199660), (19, 1073380), (20, 1019711), (22, 927010), (28, 728365), (34, 599830), (35, 582692), (38, 536690), (41, 497420), (44, 463505), (55, 370804), (68, 299915), (70, 291346), (76, 268345), (77, 264860), (82, 248710), (85, 239932), (95, 214676), (110, 185402), (119, 171380), (133, 153340), (140, 145673), (154, 132430), (164, 124355), (170, 119966), (187, 109060), (190, 107338), (205, 99484), (209, 97580), (220, 92701), (238, 85690), (266, 76670), (287, 71060), (308, 66215), (323, 63140), (340, 59983), (374, 54530), (380, 53669), (385, 52972), (410, 49742), (418, 48790), (451, 45220), (476, 42845), (532, 38335), (574, 35530), (595, 34276), (646, 31570), (665, 30668), (697, 29260), (748, 27265), (770, 26486), (779, 26180), (820, 24871), (836, 24395), (902, 22610), (935, 21812), (1045, 19516), (1148, 17765), (1190, 17138), (1292, 15785), (1309, 15580), (1330, 15334), (1394, 14630), (1435, 14212), (1463, 13940), (1540, 13243), (1558, 13090), (1615, 12628), (1804, 11305), (1870, 10906), (2090, 9758), (2255, 9044), (2261, 9020), (2380, 8569), (2618, 7790), (2660, 7667), (2788, 7315), (2870, 7106), (2926, 6970), (3116, 6545), (3157, 6460), (3230, 6314), (3485, 5852), (3553, 5740), (3740, 5453), (3895, 5236), (4180, 4879), (4510, 4522)]