20420978400

素因数分解:

$2^5\times 3^2\times 5^2\times {\mathrm{761}}^1\times {\mathrm{3727}}^1$

素因数の和:4514

約数の個数: 216

約数和(自身を含む): 72123446304

約数和(自身を除く): 51702467904

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 32, 36, 40, 45, 48, 50, 60, 72, 75, 80, 90, 96, 100, 120, 144, 150, 160, 180, 200, 225, 240, 288, 300, 360, 400, 450, 480, 600, 720, 761, 800, 900, 1200, 1440, 1522, 1800, 2283, 2400, 3044, 3600, 3727, 3805, 4566, 6088, 6849, 7200, 7454, 7610, 9132, 11181, 11415, 12176, 13698, 14908, 15220, 18264, 18635, 19025, 22362, 22830, 24352, 27396, 29816, 30440, 33543, 34245, 36528, 37270, 38050, 44724, 45660, 54792, 55905, 57075, 59632, 60880, 67086, 68490, 73056, 74540, 76100, 89448, 91320, 93175, 109584, 111810, 114150, 119264, 121760, 134172, 136980, 149080, 152200, 167715, 171225, 178896, 182640, 186350, 219168, 223620, 228300, 268344, 273960, 279525, 298160, 304400, 335430, 342450, 357792, 365280, 372700, 447240, 456600, 536688, 547920, 559050, 596320, 608800, 670860, 684900, 745400, 838575, 894480, 913200, 1073376, 1095840, 1118100, 1341720, 1369800, 1490800, 1677150, 1788960, 1826400, 2236200, 2683440, 2739600, 2836247, 2981600, 3354300, 4472400, 5366880, 5479200, 5672494, 6708600, 8508741, 8944800, 11344988, 13417200, 14181235, 17017482, 22689976, 25526223, 26834400, 28362470, 34034964, 42543705, 45379952, 51052446, 56724940, 68069928, 70906175, 85087410, 90759904, 102104892, 113449880, 127631115, 136139856, 141812350, 170174820, 204209784, 212718525, 226899760, 255262230, 272279712, 283624700, 340349640, 408419568, 425437050, 453799520, 510524460, 567249400, 638155575, 680699280, 816839136, 850874100, 1021048920, 1134498800, 1276311150, 1361398560, 1701748200, 2042097840, 2268997600, 2552622300, 3403496400, 4084195680, 5105244600, 6806992800, 10210489200, 20420978400]

約数ペア:

[(1, 20420978400), (2, 10210489200), (3, 6806992800), (4, 5105244600), (5, 4084195680), (6, 3403496400), (8, 2552622300), (9, 2268997600), (10, 2042097840), (12, 1701748200), (15, 1361398560), (16, 1276311150), (18, 1134498800), (20, 1021048920), (24, 850874100), (25, 816839136), (30, 680699280), (32, 638155575), (36, 567249400), (40, 510524460), (45, 453799520), (48, 425437050), (50, 408419568), (60, 340349640), (72, 283624700), (75, 272279712), (80, 255262230), (90, 226899760), (96, 212718525), (100, 204209784), (120, 170174820), (144, 141812350), (150, 136139856), (160, 127631115), (180, 113449880), (200, 102104892), (225, 90759904), (240, 85087410), (288, 70906175), (300, 68069928), (360, 56724940), (400, 51052446), (450, 45379952), (480, 42543705), (600, 34034964), (720, 28362470), (761, 26834400), (800, 25526223), (900, 22689976), (1200, 17017482), (1440, 14181235), (1522, 13417200), (1800, 11344988), (2283, 8944800), (2400, 8508741), (3044, 6708600), (3600, 5672494), (3727, 5479200), (3805, 5366880), (4566, 4472400), (6088, 3354300), (6849, 2981600), (7200, 2836247), (7454, 2739600), (7610, 2683440), (9132, 2236200), (11181, 1826400), (11415, 1788960), (12176, 1677150), (13698, 1490800), (14908, 1369800), (15220, 1341720), (18264, 1118100), (18635, 1095840), (19025, 1073376), (22362, 913200), (22830, 894480), (24352, 838575), (27396, 745400), (29816, 684900), (30440, 670860), (33543, 608800), (34245, 596320), (36528, 559050), (37270, 547920), (38050, 536688), (44724, 456600), (45660, 447240), (54792, 372700), (55905, 365280), (57075, 357792), (59632, 342450), (60880, 335430), (67086, 304400), (68490, 298160), (73056, 279525), (74540, 273960), (76100, 268344), (89448, 228300), (91320, 223620), (93175, 219168), (109584, 186350), (111810, 182640), (114150, 178896), (119264, 171225), (121760, 167715), (134172, 152200), (136980, 149080)]