211976520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{617}}^1$

素因数の和:1047

約数の個数: 128

約数和(自身を含む): 729734400

約数和(自身を除く): 517757880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 409, 420, 617, 818, 840, 1227, 1234, 1636, 1851, 2045, 2454, 2468, 2863, 3085, 3272, 3702, 4090, 4319, 4908, 4936, 5726, 6135, 6170, 7404, 8180, 8589, 8638, 9255, 9816, 11452, 12270, 12340, 12957, 14315, 14808, 16360, 17178, 17276, 18510, 21595, 22904, 24540, 24680, 25914, 28630, 34356, 34552, 37020, 42945, 43190, 49080, 51828, 57260, 64785, 68712, 74040, 85890, 86380, 103656, 114520, 129570, 171780, 172760, 252353, 259140, 343560, 504706, 518280, 757059, 1009412, 1261765, 1514118, 1766471, 2018824, 2523530, 3028236, 3532942, 3785295, 5047060, 5299413, 6056472, 7065884, 7570590, 8832355, 10094120, 10598826, 14131768, 15141180, 17664710, 21197652, 26497065, 30282360, 35329420, 42395304, 52994130, 70658840, 105988260, 211976520]

約数ペア:

[(1, 211976520), (2, 105988260), (3, 70658840), (4, 52994130), (5, 42395304), (6, 35329420), (7, 30282360), (8, 26497065), (10, 21197652), (12, 17664710), (14, 15141180), (15, 14131768), (20, 10598826), (21, 10094120), (24, 8832355), (28, 7570590), (30, 7065884), (35, 6056472), (40, 5299413), (42, 5047060), (56, 3785295), (60, 3532942), (70, 3028236), (84, 2523530), (105, 2018824), (120, 1766471), (140, 1514118), (168, 1261765), (210, 1009412), (280, 757059), (409, 518280), (420, 504706), (617, 343560), (818, 259140), (840, 252353), (1227, 172760), (1234, 171780), (1636, 129570), (1851, 114520), (2045, 103656), (2454, 86380), (2468, 85890), (2863, 74040), (3085, 68712), (3272, 64785), (3702, 57260), (4090, 51828), (4319, 49080), (4908, 43190), (4936, 42945), (5726, 37020), (6135, 34552), (6170, 34356), (7404, 28630), (8180, 25914), (8589, 24680), (8638, 24540), (9255, 22904), (9816, 21595), (11452, 18510), (12270, 17276), (12340, 17178), (12957, 16360), (14315, 14808)]