320736390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{263}}^1$

素因数の和:398

約数の個数: 128

約数和(自身を含む): 862202880

約数和(自身を除く): 541466490

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 53, 59, 65, 78, 106, 118, 130, 159, 177, 195, 263, 265, 295, 318, 354, 390, 526, 530, 590, 689, 767, 789, 795, 885, 1315, 1378, 1534, 1578, 1590, 1770, 2067, 2301, 2630, 3127, 3419, 3445, 3835, 3945, 4134, 4602, 6254, 6838, 6890, 7670, 7890, 9381, 10257, 10335, 11505, 13939, 15517, 15635, 17095, 18762, 20514, 20670, 23010, 27878, 31034, 31270, 34190, 40651, 41817, 46551, 46905, 51285, 69695, 77585, 81302, 83634, 93102, 93810, 102570, 121953, 139390, 155170, 181207, 201721, 203255, 209085, 232755, 243906, 362414, 403442, 406510, 418170, 465510, 543621, 605163, 609765, 822401, 906035, 1008605, 1087242, 1210326, 1219530, 1644802, 1812070, 2017210, 2467203, 2718105, 3025815, 4112005, 4934406, 5436210, 6051630, 8224010, 10691213, 12336015, 21382426, 24672030, 32073639, 53456065, 64147278, 106912130, 160368195, 320736390]

約数ペア:

[(1, 320736390), (2, 160368195), (3, 106912130), (5, 64147278), (6, 53456065), (10, 32073639), (13, 24672030), (15, 21382426), (26, 12336015), (30, 10691213), (39, 8224010), (53, 6051630), (59, 5436210), (65, 4934406), (78, 4112005), (106, 3025815), (118, 2718105), (130, 2467203), (159, 2017210), (177, 1812070), (195, 1644802), (263, 1219530), (265, 1210326), (295, 1087242), (318, 1008605), (354, 906035), (390, 822401), (526, 609765), (530, 605163), (590, 543621), (689, 465510), (767, 418170), (789, 406510), (795, 403442), (885, 362414), (1315, 243906), (1378, 232755), (1534, 209085), (1578, 203255), (1590, 201721), (1770, 181207), (2067, 155170), (2301, 139390), (2630, 121953), (3127, 102570), (3419, 93810), (3445, 93102), (3835, 83634), (3945, 81302), (4134, 77585), (4602, 69695), (6254, 51285), (6838, 46905), (6890, 46551), (7670, 41817), (7890, 40651), (9381, 34190), (10257, 31270), (10335, 31034), (11505, 27878), (13939, 23010), (15517, 20670), (15635, 20514), (17095, 18762)]