78237180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2003}}^1$

素因数の和:2056

約数の個数: 144

約数和(自身を含む): 280111104

約数和(自身を除く): 201873924

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 31, 35, 36, 42, 45, 60, 62, 63, 70, 84, 90, 93, 105, 124, 126, 140, 155, 180, 186, 210, 217, 252, 279, 310, 315, 372, 420, 434, 465, 558, 620, 630, 651, 868, 930, 1085, 1116, 1260, 1302, 1395, 1860, 1953, 2003, 2170, 2604, 2790, 3255, 3906, 4006, 4340, 5580, 6009, 6510, 7812, 8012, 9765, 10015, 12018, 13020, 14021, 18027, 19530, 20030, 24036, 28042, 30045, 36054, 39060, 40060, 42063, 56084, 60090, 62093, 70105, 72108, 84126, 90135, 120180, 124186, 126189, 140210, 168252, 180270, 186279, 210315, 248372, 252378, 280420, 310465, 360540, 372558, 420630, 434651, 504756, 558837, 620930, 630945, 745116, 841260, 869302, 931395, 1117674, 1241860, 1261890, 1303953, 1738604, 1862790, 2173255, 2235348, 2523780, 2607906, 2794185, 3725580, 3911859, 4346510, 5215812, 5588370, 6519765, 7823718, 8693020, 11176740, 13039530, 15647436, 19559295, 26079060, 39118590, 78237180]

約数ペア:

[(1, 78237180), (2, 39118590), (3, 26079060), (4, 19559295), (5, 15647436), (6, 13039530), (7, 11176740), (9, 8693020), (10, 7823718), (12, 6519765), (14, 5588370), (15, 5215812), (18, 4346510), (20, 3911859), (21, 3725580), (28, 2794185), (30, 2607906), (31, 2523780), (35, 2235348), (36, 2173255), (42, 1862790), (45, 1738604), (60, 1303953), (62, 1261890), (63, 1241860), (70, 1117674), (84, 931395), (90, 869302), (93, 841260), (105, 745116), (124, 630945), (126, 620930), (140, 558837), (155, 504756), (180, 434651), (186, 420630), (210, 372558), (217, 360540), (252, 310465), (279, 280420), (310, 252378), (315, 248372), (372, 210315), (420, 186279), (434, 180270), (465, 168252), (558, 140210), (620, 126189), (630, 124186), (651, 120180), (868, 90135), (930, 84126), (1085, 72108), (1116, 70105), (1260, 62093), (1302, 60090), (1395, 56084), (1860, 42063), (1953, 40060), (2003, 39060), (2170, 36054), (2604, 30045), (2790, 28042), (3255, 24036), (3906, 20030), (4006, 19530), (4340, 18027), (5580, 14021), (6009, 13020), (6510, 12018), (7812, 10015), (8012, 9765)]