991290420

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{1223}}^1$

素因数の和:1339

約数の個数: 192

約数和(自身を含む): 3290112000

約数和(自身を除く): 2298821580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 54, 57, 60, 76, 79, 90, 95, 108, 114, 135, 158, 171, 180, 190, 228, 237, 270, 285, 316, 342, 380, 395, 474, 513, 540, 570, 684, 711, 790, 855, 948, 1026, 1140, 1185, 1223, 1422, 1501, 1580, 1710, 2052, 2133, 2370, 2446, 2565, 2844, 3002, 3420, 3555, 3669, 4266, 4503, 4740, 4892, 5130, 6004, 6115, 7110, 7338, 7505, 8532, 9006, 10260, 10665, 11007, 12230, 13509, 14220, 14676, 15010, 18012, 18345, 21330, 22014, 22515, 23237, 24460, 27018, 30020, 33021, 36690, 40527, 42660, 44028, 45030, 46474, 54036, 55035, 66042, 67545, 69711, 73380, 81054, 90060, 92948, 96617, 110070, 116185, 132084, 135090, 139422, 162108, 165105, 193234, 202635, 209133, 220140, 232370, 270180, 278844, 289851, 330210, 348555, 386468, 405270, 418266, 464740, 483085, 579702, 627399, 660420, 697110, 810540, 836532, 869553, 966170, 1045665, 1159404, 1254798, 1394220, 1449255, 1739106, 1835723, 1932340, 2091330, 2509596, 2608659, 2898510, 3136995, 3478212, 3671446, 4182660, 4347765, 5217318, 5507169, 5797020, 6273990, 7342892, 8695530, 9178615, 10434636, 11014338, 12547980, 13043295, 16521507, 17391060, 18357230, 22028676, 26086590, 27535845, 33043014, 36714460, 49564521, 52173180, 55071690, 66086028, 82607535, 99129042, 110143380, 165215070, 198258084, 247822605, 330430140, 495645210, 991290420]

約数ペア:

[(1, 991290420), (2, 495645210), (3, 330430140), (4, 247822605), (5, 198258084), (6, 165215070), (9, 110143380), (10, 99129042), (12, 82607535), (15, 66086028), (18, 55071690), (19, 52173180), (20, 49564521), (27, 36714460), (30, 33043014), (36, 27535845), (38, 26086590), (45, 22028676), (54, 18357230), (57, 17391060), (60, 16521507), (76, 13043295), (79, 12547980), (90, 11014338), (95, 10434636), (108, 9178615), (114, 8695530), (135, 7342892), (158, 6273990), (171, 5797020), (180, 5507169), (190, 5217318), (228, 4347765), (237, 4182660), (270, 3671446), (285, 3478212), (316, 3136995), (342, 2898510), (380, 2608659), (395, 2509596), (474, 2091330), (513, 1932340), (540, 1835723), (570, 1739106), (684, 1449255), (711, 1394220), (790, 1254798), (855, 1159404), (948, 1045665), (1026, 966170), (1140, 869553), (1185, 836532), (1223, 810540), (1422, 697110), (1501, 660420), (1580, 627399), (1710, 579702), (2052, 483085), (2133, 464740), (2370, 418266), (2446, 405270), (2565, 386468), (2844, 348555), (3002, 330210), (3420, 289851), (3555, 278844), (3669, 270180), (4266, 232370), (4503, 220140), (4740, 209133), (4892, 202635), (5130, 193234), (6004, 165105), (6115, 162108), (7110, 139422), (7338, 135090), (7505, 132084), (8532, 116185), (9006, 110070), (10260, 96617), (10665, 92948), (11007, 90060), (12230, 81054), (13509, 73380), (14220, 69711), (14676, 67545), (15010, 66042), (18012, 55035), (18345, 54036), (21330, 46474), (22014, 45030), (22515, 44028), (23237, 42660), (24460, 40527), (27018, 36690), (30020, 33021)]