253666875

素因数分解:

$3^1\times 5^4\times 7^2\times {\mathrm{11}}^1\times {\mathrm{251}}^1$

素因数の和:299

約数の個数: 120

約数和(自身を含む): 538477632

約数和(自身を除く): 284810757

約数列:

[1, 3, 5, 7, 11, 15, 21, 25, 33, 35, 49, 55, 75, 77, 105, 125, 147, 165, 175, 231, 245, 251, 275, 375, 385, 525, 539, 625, 735, 753, 825, 875, 1155, 1225, 1255, 1375, 1617, 1757, 1875, 1925, 2625, 2695, 2761, 3675, 3765, 4125, 4375, 5271, 5775, 6125, 6275, 6875, 8085, 8283, 8785, 9625, 12299, 13125, 13475, 13805, 18375, 18825, 19327, 20625, 26355, 28875, 30625, 31375, 36897, 40425, 41415, 43925, 48125, 57981, 61495, 67375, 69025, 91875, 94125, 96635, 131775, 135289, 144375, 156875, 184485, 202125, 207075, 219625, 289905, 307475, 336875, 345125, 405867, 470625, 483175, 658875, 676445, 922425, 1010625, 1035375, 1098125, 1449525, 1537375, 1725625, 2029335, 2415875, 3294375, 3382225, 4612125, 5176875, 7247625, 7686875, 10146675, 12079375, 16911125, 23060625, 36238125, 50733375, 84555625, 253666875]

約数ペア:

[(1, 253666875), (3, 84555625), (5, 50733375), (7, 36238125), (11, 23060625), (15, 16911125), (21, 12079375), (25, 10146675), (33, 7686875), (35, 7247625), (49, 5176875), (55, 4612125), (75, 3382225), (77, 3294375), (105, 2415875), (125, 2029335), (147, 1725625), (165, 1537375), (175, 1449525), (231, 1098125), (245, 1035375), (251, 1010625), (275, 922425), (375, 676445), (385, 658875), (525, 483175), (539, 470625), (625, 405867), (735, 345125), (753, 336875), (825, 307475), (875, 289905), (1155, 219625), (1225, 207075), (1255, 202125), (1375, 184485), (1617, 156875), (1757, 144375), (1875, 135289), (1925, 131775), (2625, 96635), (2695, 94125), (2761, 91875), (3675, 69025), (3765, 67375), (4125, 61495), (4375, 57981), (5271, 48125), (5775, 43925), (6125, 41415), (6275, 40425), (6875, 36897), (8085, 31375), (8283, 30625), (8785, 28875), (9625, 26355), (12299, 20625), (13125, 19327), (13475, 18825), (13805, 18375)]