328980680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{251}}^1$

素因数の和:451

約数の個数: 128

約数和(自身を含む): 882524160

約数和(自身を除く): 553543480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 151, 155, 217, 248, 251, 280, 302, 310, 434, 502, 604, 620, 755, 868, 1004, 1057, 1085, 1208, 1240, 1255, 1510, 1736, 1757, 2008, 2114, 2170, 2510, 3020, 3514, 4228, 4340, 4681, 5020, 5285, 6040, 7028, 7781, 8456, 8680, 8785, 9362, 10040, 10570, 14056, 15562, 17570, 18724, 21140, 23405, 31124, 32767, 35140, 37448, 37901, 38905, 42280, 46810, 54467, 62248, 65534, 70280, 75802, 77810, 93620, 108934, 131068, 151604, 155620, 163835, 187240, 189505, 217868, 262136, 265307, 272335, 303208, 311240, 327670, 379010, 435736, 530614, 544670, 655340, 758020, 1061228, 1089340, 1174931, 1310680, 1326535, 1516040, 2122456, 2178680, 2349862, 2653070, 4699724, 5306140, 5874655, 8224517, 9399448, 10612280, 11749310, 16449034, 23498620, 32898068, 41122585, 46997240, 65796136, 82245170, 164490340, 328980680]

約数ペア:

[(1, 328980680), (2, 164490340), (4, 82245170), (5, 65796136), (7, 46997240), (8, 41122585), (10, 32898068), (14, 23498620), (20, 16449034), (28, 11749310), (31, 10612280), (35, 9399448), (40, 8224517), (56, 5874655), (62, 5306140), (70, 4699724), (124, 2653070), (140, 2349862), (151, 2178680), (155, 2122456), (217, 1516040), (248, 1326535), (251, 1310680), (280, 1174931), (302, 1089340), (310, 1061228), (434, 758020), (502, 655340), (604, 544670), (620, 530614), (755, 435736), (868, 379010), (1004, 327670), (1057, 311240), (1085, 303208), (1208, 272335), (1240, 265307), (1255, 262136), (1510, 217868), (1736, 189505), (1757, 187240), (2008, 163835), (2114, 155620), (2170, 151604), (2510, 131068), (3020, 108934), (3514, 93620), (4228, 77810), (4340, 75802), (4681, 70280), (5020, 65534), (5285, 62248), (6040, 54467), (7028, 46810), (7781, 42280), (8456, 38905), (8680, 37901), (8785, 37448), (9362, 35140), (10040, 32767), (10570, 31124), (14056, 23405), (15562, 21140), (17570, 18724)]