407203975

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1\times {\mathrm{139}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 552152160

約数和(自身を除く): 144948185

約数列:

[1, 5, 17, 25, 61, 85, 113, 139, 305, 425, 565, 695, 1037, 1525, 1921, 2363, 2825, 3475, 5185, 6893, 8479, 9605, 11815, 15707, 25925, 34465, 42395, 48025, 59075, 78535, 117181, 144143, 172325, 211975, 267019, 392675, 585905, 720715, 958127, 1335095, 2929525, 3603575, 4790635, 6675475, 16288159, 23953175, 81440795, 407203975]

約数ペア:

[(1, 407203975), (5, 81440795), (17, 23953175), (25, 16288159), (61, 6675475), (85, 4790635), (113, 3603575), (139, 2929525), (305, 1335095), (425, 958127), (565, 720715), (695, 585905), (1037, 392675), (1525, 267019), (1921, 211975), (2363, 172325), (2825, 144143), (3475, 117181), (5185, 78535), (6893, 59075), (8479, 48025), (9605, 42395), (11815, 34465), (15707, 25925)]