978678120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{31489}}^1$

素因数の和:31547

約数の個数: 128

約数和(自身を含む): 3446265600

約数和(自身を除く): 2467587480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 37, 40, 42, 56, 60, 70, 74, 84, 105, 111, 120, 140, 148, 168, 185, 210, 222, 259, 280, 296, 370, 420, 444, 518, 555, 740, 777, 840, 888, 1036, 1110, 1295, 1480, 1554, 2072, 2220, 2590, 3108, 3885, 4440, 5180, 6216, 7770, 10360, 15540, 31080, 31489, 62978, 94467, 125956, 157445, 188934, 220423, 251912, 314890, 377868, 440846, 472335, 629780, 661269, 755736, 881692, 944670, 1102115, 1165093, 1259560, 1322538, 1763384, 1889340, 2204230, 2330186, 2645076, 3306345, 3495279, 3778680, 4408460, 4660372, 5290152, 5825465, 6612690, 6990558, 8155651, 8816920, 9320744, 11650930, 13225380, 13981116, 16311302, 17476395, 23301860, 24466953, 26450760, 27962232, 32622604, 34952790, 40778255, 46603720, 48933906, 65245208, 69905580, 81556510, 97867812, 122334765, 139811160, 163113020, 195735624, 244669530, 326226040, 489339060, 978678120]

約数ペア:

[(1, 978678120), (2, 489339060), (3, 326226040), (4, 244669530), (5, 195735624), (6, 163113020), (7, 139811160), (8, 122334765), (10, 97867812), (12, 81556510), (14, 69905580), (15, 65245208), (20, 48933906), (21, 46603720), (24, 40778255), (28, 34952790), (30, 32622604), (35, 27962232), (37, 26450760), (40, 24466953), (42, 23301860), (56, 17476395), (60, 16311302), (70, 13981116), (74, 13225380), (84, 11650930), (105, 9320744), (111, 8816920), (120, 8155651), (140, 6990558), (148, 6612690), (168, 5825465), (185, 5290152), (210, 4660372), (222, 4408460), (259, 3778680), (280, 3495279), (296, 3306345), (370, 2645076), (420, 2330186), (444, 2204230), (518, 1889340), (555, 1763384), (740, 1322538), (777, 1259560), (840, 1165093), (888, 1102115), (1036, 944670), (1110, 881692), (1295, 755736), (1480, 661269), (1554, 629780), (2072, 472335), (2220, 440846), (2590, 377868), (3108, 314890), (3885, 251912), (4440, 220423), (5180, 188934), (6216, 157445), (7770, 125956), (10360, 94467), (15540, 62978), (31080, 31489)]