3901625

素因数分解:

$5^3\times 7^4\times {\mathrm{13}}^1$

素因数の和:56

約数の個数: 40

約数和(自身を含む): 6117384

約数和(自身を除く): 2215759

約数列:

[1, 5, 7, 13, 25, 35, 49, 65, 91, 125, 175, 245, 325, 343, 455, 637, 875, 1225, 1625, 1715, 2275, 2401, 3185, 4459, 6125, 8575, 11375, 12005, 15925, 22295, 31213, 42875, 60025, 79625, 111475, 156065, 300125, 557375, 780325, 3901625]

約数ペア:

[(1, 3901625), (5, 780325), (7, 557375), (13, 300125), (25, 156065), (35, 111475), (49, 79625), (65, 60025), (91, 42875), (125, 31213), (175, 22295), (245, 15925), (325, 12005), (343, 11375), (455, 8575), (637, 6125), (875, 4459), (1225, 3185), (1625, 2401), (1715, 2275)]