978811380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{1787}}^1$

素因数の和:1998

約数の個数: 144

約数和(自身を含む): 3163043520

約数和(自身を除く): 2184232140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 179, 180, 204, 255, 306, 340, 358, 510, 537, 612, 716, 765, 895, 1020, 1074, 1530, 1611, 1787, 1790, 2148, 2685, 3043, 3060, 3222, 3574, 3580, 5361, 5370, 6086, 6444, 7148, 8055, 8935, 9129, 10722, 10740, 12172, 15215, 16083, 16110, 17870, 18258, 21444, 26805, 27387, 30379, 30430, 32166, 32220, 35740, 36516, 45645, 53610, 54774, 60758, 60860, 64332, 80415, 91137, 91290, 107220, 109548, 121516, 136935, 151895, 160830, 182274, 182580, 273411, 273870, 303790, 319873, 321660, 364548, 455685, 546822, 547740, 607580, 639746, 911370, 959619, 1093644, 1279492, 1367055, 1599365, 1822740, 1919238, 2734110, 2878857, 3198730, 3838476, 4798095, 5437841, 5468220, 5757714, 6397460, 9596190, 10875682, 11515428, 14394285, 16313523, 19192380, 21751364, 27189205, 28788570, 32627046, 48940569, 54378410, 57577140, 65254092, 81567615, 97881138, 108756820, 163135230, 195762276, 244702845, 326270460, 489405690, 978811380]

約数ペア:

[(1, 978811380), (2, 489405690), (3, 326270460), (4, 244702845), (5, 195762276), (6, 163135230), (9, 108756820), (10, 97881138), (12, 81567615), (15, 65254092), (17, 57577140), (18, 54378410), (20, 48940569), (30, 32627046), (34, 28788570), (36, 27189205), (45, 21751364), (51, 19192380), (60, 16313523), (68, 14394285), (85, 11515428), (90, 10875682), (102, 9596190), (153, 6397460), (170, 5757714), (179, 5468220), (180, 5437841), (204, 4798095), (255, 3838476), (306, 3198730), (340, 2878857), (358, 2734110), (510, 1919238), (537, 1822740), (612, 1599365), (716, 1367055), (765, 1279492), (895, 1093644), (1020, 959619), (1074, 911370), (1530, 639746), (1611, 607580), (1787, 547740), (1790, 546822), (2148, 455685), (2685, 364548), (3043, 321660), (3060, 319873), (3222, 303790), (3574, 273870), (3580, 273411), (5361, 182580), (5370, 182274), (6086, 160830), (6444, 151895), (7148, 136935), (8055, 121516), (8935, 109548), (9129, 107220), (10722, 91290), (10740, 91137), (12172, 80415), (15215, 64332), (16083, 60860), (16110, 60758), (17870, 54774), (18258, 53610), (21444, 45645), (26805, 36516), (27387, 35740), (30379, 32220), (30430, 32166)]