28144900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1297}}^1$

素因数の和:1349

約数の個数: 72

約数和(自身を含む): 72106496

約数和(自身を除く): 43961596

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 31, 35, 50, 62, 70, 100, 124, 140, 155, 175, 217, 310, 350, 434, 620, 700, 775, 868, 1085, 1297, 1550, 2170, 2594, 3100, 4340, 5188, 5425, 6485, 9079, 10850, 12970, 18158, 21700, 25940, 32425, 36316, 40207, 45395, 64850, 80414, 90790, 129700, 160828, 181580, 201035, 226975, 281449, 402070, 453950, 562898, 804140, 907900, 1005175, 1125796, 1407245, 2010350, 2814490, 4020700, 5628980, 7036225, 14072450, 28144900]

約数ペア:

[(1, 28144900), (2, 14072450), (4, 7036225), (5, 5628980), (7, 4020700), (10, 2814490), (14, 2010350), (20, 1407245), (25, 1125796), (28, 1005175), (31, 907900), (35, 804140), (50, 562898), (62, 453950), (70, 402070), (100, 281449), (124, 226975), (140, 201035), (155, 181580), (175, 160828), (217, 129700), (310, 90790), (350, 80414), (434, 64850), (620, 45395), (700, 40207), (775, 36316), (868, 32425), (1085, 25940), (1297, 21700), (1550, 18158), (2170, 12970), (2594, 10850), (3100, 9079), (4340, 6485), (5188, 5425)]