1290431240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{431}}^1$

素因数の和:520

約数の個数: 192

約数和(自身を含む): 3628592640

約数和(自身を除く): 2338161400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 37, 40, 56, 68, 70, 74, 85, 119, 136, 140, 148, 170, 185, 238, 259, 280, 289, 296, 340, 370, 431, 476, 518, 578, 595, 629, 680, 740, 862, 952, 1036, 1156, 1190, 1258, 1295, 1445, 1480, 1724, 2023, 2072, 2155, 2312, 2380, 2516, 2590, 2890, 3017, 3145, 3448, 4046, 4310, 4403, 4760, 5032, 5180, 5780, 6034, 6290, 7327, 8092, 8620, 8806, 10115, 10360, 10693, 11560, 12068, 12580, 14654, 15085, 15947, 16184, 17240, 17612, 20230, 21386, 22015, 24136, 25160, 29308, 30170, 31894, 35224, 36635, 40460, 42772, 44030, 51289, 53465, 58616, 60340, 63788, 73270, 74851, 79735, 80920, 85544, 88060, 102578, 106930, 111629, 120680, 124559, 127576, 146540, 149702, 159470, 176120, 205156, 213860, 223258, 249118, 256445, 271099, 293080, 299404, 318940, 374255, 410312, 427720, 446516, 498236, 512890, 542198, 558145, 598808, 622795, 637880, 748510, 871913, 893032, 996472, 1025780, 1084396, 1116290, 1245590, 1355495, 1497020, 1743826, 1897693, 2051560, 2168792, 2232580, 2491180, 2710990, 2994040, 3487652, 3795386, 4359565, 4465160, 4608683, 4982360, 5421980, 6975304, 7590772, 8719130, 9217366, 9488465, 10843960, 15181544, 17438260, 18434732, 18976930, 23043415, 32260781, 34876520, 36869464, 37953860, 46086830, 64521562, 75907720, 92173660, 129043124, 161303905, 184347320, 258086248, 322607810, 645215620, 1290431240]

約数ペア:

[(1, 1290431240), (2, 645215620), (4, 322607810), (5, 258086248), (7, 184347320), (8, 161303905), (10, 129043124), (14, 92173660), (17, 75907720), (20, 64521562), (28, 46086830), (34, 37953860), (35, 36869464), (37, 34876520), (40, 32260781), (56, 23043415), (68, 18976930), (70, 18434732), (74, 17438260), (85, 15181544), (119, 10843960), (136, 9488465), (140, 9217366), (148, 8719130), (170, 7590772), (185, 6975304), (238, 5421980), (259, 4982360), (280, 4608683), (289, 4465160), (296, 4359565), (340, 3795386), (370, 3487652), (431, 2994040), (476, 2710990), (518, 2491180), (578, 2232580), (595, 2168792), (629, 2051560), (680, 1897693), (740, 1743826), (862, 1497020), (952, 1355495), (1036, 1245590), (1156, 1116290), (1190, 1084396), (1258, 1025780), (1295, 996472), (1445, 893032), (1480, 871913), (1724, 748510), (2023, 637880), (2072, 622795), (2155, 598808), (2312, 558145), (2380, 542198), (2516, 512890), (2590, 498236), (2890, 446516), (3017, 427720), (3145, 410312), (3448, 374255), (4046, 318940), (4310, 299404), (4403, 293080), (4760, 271099), (5032, 256445), (5180, 249118), (5780, 223258), (6034, 213860), (6290, 205156), (7327, 176120), (8092, 159470), (8620, 149702), (8806, 146540), (10115, 127576), (10360, 124559), (10693, 120680), (11560, 111629), (12068, 106930), (12580, 102578), (14654, 88060), (15085, 85544), (15947, 80920), (16184, 79735), (17240, 74851), (17612, 73270), (20230, 63788), (21386, 60340), (22015, 58616), (24136, 53465), (25160, 51289), (29308, 44030), (30170, 42772), (31894, 40460), (35224, 36635)]