205246288

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{229}}^1$

素因数の和:420

約数の個数: 80

約数和(自身を含む): 447193600

約数和(自身を除く): 241947312

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 139, 208, 229, 248, 278, 403, 458, 496, 556, 806, 916, 1112, 1612, 1807, 1832, 2224, 2977, 3224, 3614, 3664, 4309, 5954, 6448, 7099, 7228, 8618, 11908, 14198, 14456, 17236, 23816, 28396, 28912, 31831, 34472, 47632, 56017, 56792, 63662, 68944, 92287, 112034, 113584, 127324, 184574, 224068, 254648, 369148, 413803, 448136, 509296, 738296, 827606, 896272, 986761, 1476592, 1655212, 1973522, 3310424, 3947044, 6620848, 7894088, 12827893, 15788176, 25655786, 51311572, 102623144, 205246288]

約数ペア:

[(1, 205246288), (2, 102623144), (4, 51311572), (8, 25655786), (13, 15788176), (16, 12827893), (26, 7894088), (31, 6620848), (52, 3947044), (62, 3310424), (104, 1973522), (124, 1655212), (139, 1476592), (208, 986761), (229, 896272), (248, 827606), (278, 738296), (403, 509296), (458, 448136), (496, 413803), (556, 369148), (806, 254648), (916, 224068), (1112, 184574), (1612, 127324), (1807, 113584), (1832, 112034), (2224, 92287), (2977, 68944), (3224, 63662), (3614, 56792), (3664, 56017), (4309, 47632), (5954, 34472), (6448, 31831), (7099, 28912), (7228, 28396), (8618, 23816), (11908, 17236), (14198, 14456)]