31356156

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:259

約数の個数: 96

約数和(自身を含む): 84672000

約数和(自身を除く): 53315844

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 38, 39, 52, 57, 71, 76, 78, 114, 142, 149, 156, 213, 228, 247, 284, 298, 426, 447, 494, 596, 741, 852, 894, 923, 988, 1349, 1482, 1788, 1846, 1937, 2698, 2769, 2831, 2964, 3692, 3874, 4047, 5396, 5538, 5662, 5811, 7748, 8094, 8493, 10579, 11076, 11324, 11622, 16188, 16986, 17537, 21158, 23244, 31737, 33972, 35074, 36803, 42316, 52611, 63474, 70148, 73606, 105222, 110409, 126948, 137527, 147212, 201001, 210444, 220818, 275054, 402002, 412581, 441636, 550108, 603003, 804004, 825162, 1206006, 1650324, 2412012, 2613013, 5226026, 7839039, 10452052, 15678078, 31356156]

約数ペア:

[(1, 31356156), (2, 15678078), (3, 10452052), (4, 7839039), (6, 5226026), (12, 2613013), (13, 2412012), (19, 1650324), (26, 1206006), (38, 825162), (39, 804004), (52, 603003), (57, 550108), (71, 441636), (76, 412581), (78, 402002), (114, 275054), (142, 220818), (149, 210444), (156, 201001), (213, 147212), (228, 137527), (247, 126948), (284, 110409), (298, 105222), (426, 73606), (447, 70148), (494, 63474), (596, 52611), (741, 42316), (852, 36803), (894, 35074), (923, 33972), (988, 31737), (1349, 23244), (1482, 21158), (1788, 17537), (1846, 16986), (1937, 16188), (2698, 11622), (2769, 11324), (2831, 11076), (2964, 10579), (3692, 8493), (3874, 8094), (4047, 7748), (5396, 5811), (5538, 5662)]