391288660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{509}}^1$

素因数の和:578

約数の個数: 144

約数和(自身を含む): 1052150400

約数和(自身を除く): 660861740

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 19, 20, 28, 34, 35, 38, 68, 70, 76, 85, 95, 119, 133, 140, 170, 190, 238, 266, 289, 323, 340, 380, 476, 509, 532, 578, 595, 646, 665, 1018, 1156, 1190, 1292, 1330, 1445, 1615, 2023, 2036, 2261, 2380, 2545, 2660, 2890, 3230, 3563, 4046, 4522, 5090, 5491, 5780, 6460, 7126, 8092, 8653, 9044, 9671, 10115, 10180, 10982, 11305, 14252, 17306, 17815, 19342, 20230, 21964, 22610, 27455, 34612, 35630, 38437, 38684, 40460, 43265, 45220, 48355, 54910, 60571, 67697, 71260, 76874, 86530, 96710, 109820, 121142, 135394, 147101, 153748, 164407, 173060, 192185, 193420, 242284, 270788, 294202, 302855, 328814, 338485, 384370, 588404, 605710, 657628, 676970, 735505, 768740, 822035, 1029707, 1150849, 1211420, 1353940, 1471010, 1644070, 2059414, 2301698, 2794919, 2942020, 3288140, 4118828, 4603396, 5148535, 5589838, 5754245, 10297070, 11179676, 11508490, 13974595, 19564433, 20594140, 23016980, 27949190, 39128866, 55898380, 78257732, 97822165, 195644330, 391288660]

約数ペア:

[(1, 391288660), (2, 195644330), (4, 97822165), (5, 78257732), (7, 55898380), (10, 39128866), (14, 27949190), (17, 23016980), (19, 20594140), (20, 19564433), (28, 13974595), (34, 11508490), (35, 11179676), (38, 10297070), (68, 5754245), (70, 5589838), (76, 5148535), (85, 4603396), (95, 4118828), (119, 3288140), (133, 2942020), (140, 2794919), (170, 2301698), (190, 2059414), (238, 1644070), (266, 1471010), (289, 1353940), (323, 1211420), (340, 1150849), (380, 1029707), (476, 822035), (509, 768740), (532, 735505), (578, 676970), (595, 657628), (646, 605710), (665, 588404), (1018, 384370), (1156, 338485), (1190, 328814), (1292, 302855), (1330, 294202), (1445, 270788), (1615, 242284), (2023, 193420), (2036, 192185), (2261, 173060), (2380, 164407), (2545, 153748), (2660, 147101), (2890, 135394), (3230, 121142), (3563, 109820), (4046, 96710), (4522, 86530), (5090, 76874), (5491, 71260), (5780, 67697), (6460, 60571), (7126, 54910), (8092, 48355), (8653, 45220), (9044, 43265), (9671, 40460), (10115, 38684), (10180, 38437), (10982, 35630), (11305, 34612), (14252, 27455), (17306, 22610), (17815, 21964), (19342, 20230)]