79676820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:286

約数の個数: 144

約数和(自身を含む): 253693440

約数和(自身を除く): 174016620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 109, 124, 131, 155, 180, 186, 218, 262, 279, 310, 327, 372, 393, 436, 465, 524, 545, 558, 620, 654, 655, 786, 930, 981, 1090, 1116, 1179, 1308, 1310, 1395, 1572, 1635, 1860, 1962, 1965, 2180, 2358, 2620, 2790, 3270, 3379, 3924, 3930, 4061, 4716, 4905, 5580, 5895, 6540, 6758, 7860, 8122, 9810, 10137, 11790, 12183, 13516, 14279, 16244, 16895, 19620, 20274, 20305, 23580, 24366, 28558, 30411, 33790, 36549, 40548, 40610, 42837, 48732, 50685, 57116, 60822, 60915, 67580, 71395, 73098, 81220, 85674, 101370, 121644, 121830, 128511, 142790, 146196, 152055, 171348, 182745, 202740, 214185, 243660, 257022, 285580, 304110, 365490, 428370, 442649, 514044, 608220, 642555, 730980, 856740, 885298, 1285110, 1327947, 1770596, 2213245, 2570220, 2655894, 3983841, 4426490, 5311788, 6639735, 7967682, 8852980, 13279470, 15935364, 19919205, 26558940, 39838410, 79676820]

約数ペア:

[(1, 79676820), (2, 39838410), (3, 26558940), (4, 19919205), (5, 15935364), (6, 13279470), (9, 8852980), (10, 7967682), (12, 6639735), (15, 5311788), (18, 4426490), (20, 3983841), (30, 2655894), (31, 2570220), (36, 2213245), (45, 1770596), (60, 1327947), (62, 1285110), (90, 885298), (93, 856740), (109, 730980), (124, 642555), (131, 608220), (155, 514044), (180, 442649), (186, 428370), (218, 365490), (262, 304110), (279, 285580), (310, 257022), (327, 243660), (372, 214185), (393, 202740), (436, 182745), (465, 171348), (524, 152055), (545, 146196), (558, 142790), (620, 128511), (654, 121830), (655, 121644), (786, 101370), (930, 85674), (981, 81220), (1090, 73098), (1116, 71395), (1179, 67580), (1308, 60915), (1310, 60822), (1395, 57116), (1572, 50685), (1635, 48732), (1860, 42837), (1962, 40610), (1965, 40548), (2180, 36549), (2358, 33790), (2620, 30411), (2790, 28558), (3270, 24366), (3379, 23580), (3924, 20305), (3930, 20274), (4061, 19620), (4716, 16895), (4905, 16244), (5580, 14279), (5895, 13516), (6540, 12183), (6758, 11790), (7860, 10137), (8122, 9810)]