1279075420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{239}}^1$

素因数の和:432

約数の個数: 144

約数和(自身を含む): 3235921920

約数和(自身を除く): 1956846500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 49, 70, 86, 98, 127, 140, 172, 196, 215, 239, 245, 254, 301, 430, 478, 490, 508, 602, 635, 860, 889, 956, 980, 1195, 1204, 1270, 1505, 1673, 1778, 2107, 2390, 2540, 3010, 3346, 3556, 4214, 4445, 4780, 5461, 6020, 6223, 6692, 8365, 8428, 8890, 10277, 10535, 10922, 11711, 12446, 16730, 17780, 20554, 21070, 21844, 23422, 24892, 27305, 30353, 31115, 33460, 38227, 41108, 42140, 46844, 51385, 54610, 58555, 60706, 62230, 71939, 76454, 102770, 109220, 117110, 121412, 124460, 143878, 151765, 152908, 191135, 205540, 212471, 234220, 267589, 287756, 303530, 359695, 382270, 424942, 503573, 535178, 607060, 719390, 764540, 849884, 1007146, 1062355, 1070356, 1305179, 1337945, 1438780, 1487297, 2014292, 2124710, 2517865, 2610358, 2675890, 2974594, 4249420, 5035730, 5220716, 5351780, 5949188, 6525895, 7436485, 9136253, 10071460, 13051790, 14872970, 18272506, 26103580, 29745940, 36545012, 45681265, 63953771, 91362530, 127907542, 182725060, 255815084, 319768855, 639537710, 1279075420]

約数ペア:

[(1, 1279075420), (2, 639537710), (4, 319768855), (5, 255815084), (7, 182725060), (10, 127907542), (14, 91362530), (20, 63953771), (28, 45681265), (35, 36545012), (43, 29745940), (49, 26103580), (70, 18272506), (86, 14872970), (98, 13051790), (127, 10071460), (140, 9136253), (172, 7436485), (196, 6525895), (215, 5949188), (239, 5351780), (245, 5220716), (254, 5035730), (301, 4249420), (430, 2974594), (478, 2675890), (490, 2610358), (508, 2517865), (602, 2124710), (635, 2014292), (860, 1487297), (889, 1438780), (956, 1337945), (980, 1305179), (1195, 1070356), (1204, 1062355), (1270, 1007146), (1505, 849884), (1673, 764540), (1778, 719390), (2107, 607060), (2390, 535178), (2540, 503573), (3010, 424942), (3346, 382270), (3556, 359695), (4214, 303530), (4445, 287756), (4780, 267589), (5461, 234220), (6020, 212471), (6223, 205540), (6692, 191135), (8365, 152908), (8428, 151765), (8890, 143878), (10277, 124460), (10535, 121412), (10922, 117110), (11711, 109220), (12446, 102770), (16730, 76454), (17780, 71939), (20554, 62230), (21070, 60706), (21844, 58555), (23422, 54610), (24892, 51385), (27305, 46844), (30353, 42140), (31115, 41108), (33460, 38227)]