128685900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{233}}^1\times {\mathrm{263}}^1$

素因数の和:520

約数の個数: 144

約数和(自身を含む): 428972544

約数和(自身を除く): 300286644

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 100, 105, 140, 150, 175, 210, 233, 263, 300, 350, 420, 466, 525, 526, 699, 700, 789, 932, 1050, 1052, 1165, 1315, 1398, 1578, 1631, 1841, 2100, 2330, 2630, 2796, 3156, 3262, 3495, 3682, 3945, 4660, 4893, 5260, 5523, 5825, 6524, 6575, 6990, 7364, 7890, 8155, 9205, 9786, 11046, 11650, 13150, 13980, 15780, 16310, 17475, 18410, 19572, 19725, 22092, 23300, 24465, 26300, 27615, 32620, 34950, 36820, 39450, 40775, 46025, 48930, 55230, 61279, 69900, 78900, 81550, 92050, 97860, 110460, 122325, 122558, 138075, 163100, 183837, 184100, 244650, 245116, 276150, 306395, 367674, 428953, 489300, 552300, 612790, 735348, 857906, 919185, 1225580, 1286859, 1531975, 1715812, 1838370, 2144765, 2573718, 3063950, 3676740, 4289530, 4595925, 5147436, 6127900, 6434295, 8579060, 9191850, 10723825, 12868590, 18383700, 21447650, 25737180, 32171475, 42895300, 64342950, 128685900]

約数ペア:

[(1, 128685900), (2, 64342950), (3, 42895300), (4, 32171475), (5, 25737180), (6, 21447650), (7, 18383700), (10, 12868590), (12, 10723825), (14, 9191850), (15, 8579060), (20, 6434295), (21, 6127900), (25, 5147436), (28, 4595925), (30, 4289530), (35, 3676740), (42, 3063950), (50, 2573718), (60, 2144765), (70, 1838370), (75, 1715812), (84, 1531975), (100, 1286859), (105, 1225580), (140, 919185), (150, 857906), (175, 735348), (210, 612790), (233, 552300), (263, 489300), (300, 428953), (350, 367674), (420, 306395), (466, 276150), (525, 245116), (526, 244650), (699, 184100), (700, 183837), (789, 163100), (932, 138075), (1050, 122558), (1052, 122325), (1165, 110460), (1315, 97860), (1398, 92050), (1578, 81550), (1631, 78900), (1841, 69900), (2100, 61279), (2330, 55230), (2630, 48930), (2796, 46025), (3156, 40775), (3262, 39450), (3495, 36820), (3682, 34950), (3945, 32620), (4660, 27615), (4893, 26300), (5260, 24465), (5523, 23300), (5825, 22092), (6524, 19725), (6575, 19572), (6990, 18410), (7364, 17475), (7890, 16310), (8155, 15780), (9205, 13980), (9786, 13150), (11046, 11650)]