245412720

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{16231}}^1$

素因数の和:16260

約数の個数: 160

約数和(自身を含む): 966128640

約数和(自身を除く): 720715920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 504, 540, 560, 630, 720, 756, 840, 945, 1008, 1080, 1260, 1512, 1680, 1890, 2160, 2520, 3024, 3780, 5040, 7560, 15120, 16231, 32462, 48693, 64924, 81155, 97386, 113617, 129848, 146079, 162310, 194772, 227234, 243465, 259696, 292158, 324620, 340851, 389544, 438237, 454468, 486930, 568085, 584316, 649240, 681702, 730395, 779088, 876474, 908936, 973860, 1022553, 1136170, 1168632, 1298480, 1363404, 1460790, 1704255, 1752948, 1817872, 1947720, 2045106, 2191185, 2272340, 2337264, 2726808, 2921580, 3067659, 3408510, 3505896, 3895440, 4090212, 4382370, 4544680, 5112765, 5453616, 5843160, 6135318, 6817020, 7011792, 8180424, 8764740, 9089360, 10225530, 11686320, 12270636, 13634040, 15338295, 16360848, 17529480, 20451060, 24541272, 27268080, 30676590, 35058960, 40902120, 49082544, 61353180, 81804240, 122706360, 245412720]

約数ペア:

[(1, 245412720), (2, 122706360), (3, 81804240), (4, 61353180), (5, 49082544), (6, 40902120), (7, 35058960), (8, 30676590), (9, 27268080), (10, 24541272), (12, 20451060), (14, 17529480), (15, 16360848), (16, 15338295), (18, 13634040), (20, 12270636), (21, 11686320), (24, 10225530), (27, 9089360), (28, 8764740), (30, 8180424), (35, 7011792), (36, 6817020), (40, 6135318), (42, 5843160), (45, 5453616), (48, 5112765), (54, 4544680), (56, 4382370), (60, 4090212), (63, 3895440), (70, 3505896), (72, 3408510), (80, 3067659), (84, 2921580), (90, 2726808), (105, 2337264), (108, 2272340), (112, 2191185), (120, 2045106), (126, 1947720), (135, 1817872), (140, 1752948), (144, 1704255), (168, 1460790), (180, 1363404), (189, 1298480), (210, 1168632), (216, 1136170), (240, 1022553), (252, 973860), (270, 908936), (280, 876474), (315, 779088), (336, 730395), (360, 681702), (378, 649240), (420, 584316), (432, 568085), (504, 486930), (540, 454468), (560, 438237), (630, 389544), (720, 340851), (756, 324620), (840, 292158), (945, 259696), (1008, 243465), (1080, 227234), (1260, 194772), (1512, 162310), (1680, 146079), (1890, 129848), (2160, 113617), (2520, 97386), (3024, 81155), (3780, 64924), (5040, 48693), (7560, 32462), (15120, 16231)]