31424925

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{503}}^1$

素因数の和:547

約数の個数: 72

約数和(自身を含む): 64120896

約数和(自身を除く): 32695971

約数列:

[1, 3, 5, 7, 15, 17, 21, 25, 35, 49, 51, 75, 85, 105, 119, 147, 175, 245, 255, 357, 425, 503, 525, 595, 735, 833, 1225, 1275, 1509, 1785, 2499, 2515, 2975, 3521, 3675, 4165, 7545, 8551, 8925, 10563, 12495, 12575, 17605, 20825, 24647, 25653, 37725, 42755, 52815, 59857, 62475, 73941, 88025, 123235, 128265, 179571, 213775, 264075, 299285, 369705, 418999, 616175, 641325, 897855, 1256997, 1496425, 1848525, 2094995, 4489275, 6284985, 10474975, 31424925]

約数ペア:

[(1, 31424925), (3, 10474975), (5, 6284985), (7, 4489275), (15, 2094995), (17, 1848525), (21, 1496425), (25, 1256997), (35, 897855), (49, 641325), (51, 616175), (75, 418999), (85, 369705), (105, 299285), (119, 264075), (147, 213775), (175, 179571), (245, 128265), (255, 123235), (357, 88025), (425, 73941), (503, 62475), (525, 59857), (595, 52815), (735, 42755), (833, 37725), (1225, 25653), (1275, 24647), (1509, 20825), (1785, 17605), (2499, 12575), (2515, 12495), (2975, 10563), (3521, 8925), (3675, 8551), (4165, 7545)]