78912120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2539}}^1$

素因数の和:2597

約数の個数: 128

約数和(自身を含む): 277977600

約数和(自身を除く): 199065480

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, 2539, 2590, 3108, 3885, 4440, 5078, 5180, 6216, 7617, 7770, 10156, 10360, 12695, 15234, 15540, 17773, 20312, 25390, 30468, 31080, 35546, 38085, 50780, 53319, 60936, 71092, 76170, 88865, 93943, 101560, 106638, 142184, 152340, 177730, 187886, 213276, 266595, 281829, 304680, 355460, 375772, 426552, 469715, 533190, 563658, 657601, 710920, 751544, 939430, 1066380, 1127316, 1315202, 1409145, 1878860, 1972803, 2132760, 2254632, 2630404, 2818290, 3288005, 3757720, 3945606, 5260808, 5636580, 6576010, 7891212, 9864015, 11273160, 13152020, 15782424, 19728030, 26304040, 39456060, 78912120]

約数ペア:

[(1, 78912120), (2, 39456060), (3, 26304040), (4, 19728030), (5, 15782424), (6, 13152020), (7, 11273160), (8, 9864015), (10, 7891212), (12, 6576010), (14, 5636580), (15, 5260808), (20, 3945606), (21, 3757720), (24, 3288005), (28, 2818290), (30, 2630404), (35, 2254632), (37, 2132760), (40, 1972803), (42, 1878860), (56, 1409145), (60, 1315202), (70, 1127316), (74, 1066380), (84, 939430), (105, 751544), (111, 710920), (120, 657601), (140, 563658), (148, 533190), (168, 469715), (185, 426552), (210, 375772), (222, 355460), (259, 304680), (280, 281829), (296, 266595), (370, 213276), (420, 187886), (444, 177730), (518, 152340), (555, 142184), (740, 106638), (777, 101560), (840, 93943), (888, 88865), (1036, 76170), (1110, 71092), (1295, 60936), (1480, 53319), (1554, 50780), (2072, 38085), (2220, 35546), (2539, 31080), (2590, 30468), (3108, 25390), (3885, 20312), (4440, 17773), (5078, 15540), (5180, 15234), (6216, 12695), (7617, 10360), (7770, 10156)]