81804240

素因数分解:

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

素因数の和:16257

約数の個数: 120

約数和(自身を含む): 313991808

約数和(自身を除く): 232187568

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 16231, 32462, 48693, 64924, 81155, 97386, 113617, 129848, 146079, 162310, 194772, 227234, 243465, 259696, 292158, 324620, 340851, 389544, 454468, 486930, 568085, 584316, 649240, 681702, 730395, 779088, 908936, 973860, 1022553, 1136170, 1168632, 1298480, 1363404, 1460790, 1704255, 1817872, 1947720, 2045106, 2272340, 2337264, 2726808, 2921580, 3408510, 3895440, 4090212, 4544680, 5112765, 5453616, 5843160, 6817020, 8180424, 9089360, 10225530, 11686320, 13634040, 16360848, 20451060, 27268080, 40902120, 81804240]

約数ペア:

[(1, 81804240), (2, 40902120), (3, 27268080), (4, 20451060), (5, 16360848), (6, 13634040), (7, 11686320), (8, 10225530), (9, 9089360), (10, 8180424), (12, 6817020), (14, 5843160), (15, 5453616), (16, 5112765), (18, 4544680), (20, 4090212), (21, 3895440), (24, 3408510), (28, 2921580), (30, 2726808), (35, 2337264), (36, 2272340), (40, 2045106), (42, 1947720), (45, 1817872), (48, 1704255), (56, 1460790), (60, 1363404), (63, 1298480), (70, 1168632), (72, 1136170), (80, 1022553), (84, 973860), (90, 908936), (105, 779088), (112, 730395), (120, 681702), (126, 649240), (140, 584316), (144, 568085), (168, 486930), (180, 454468), (210, 389544), (240, 340851), (252, 324620), (280, 292158), (315, 259696), (336, 243465), (360, 227234), (420, 194772), (504, 162310), (560, 146079), (630, 129848), (720, 113617), (840, 97386), (1008, 81155), (1260, 64924), (1680, 48693), (2520, 32462), (5040, 16231)]