28256325

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{251}}^1$

素因数の和:362

約数の個数: 48

約数和(自身を含む): 49996800

約数和(自身を除く): 21740475

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 79, 95, 237, 251, 285, 395, 475, 753, 1185, 1255, 1425, 1501, 1975, 3765, 4503, 4769, 5925, 6275, 7505, 14307, 18825, 19829, 22515, 23845, 37525, 59487, 71535, 99145, 112575, 119225, 297435, 357675, 376751, 495725, 1130253, 1487175, 1883755, 5651265, 9418775, 28256325]

約数ペア:

[(1, 28256325), (3, 9418775), (5, 5651265), (15, 1883755), (19, 1487175), (25, 1130253), (57, 495725), (75, 376751), (79, 357675), (95, 297435), (237, 119225), (251, 112575), (285, 99145), (395, 71535), (475, 59487), (753, 37525), (1185, 23845), (1255, 22515), (1425, 19829), (1501, 18825), (1975, 14307), (3765, 7505), (4503, 6275), (4769, 5925)]