221400825

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{619}}^1$

素因数の和:902

約数の個数: 48

約数和(自身を含む): 387475200

約数和(自身を除く): 166074375

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 251, 285, 475, 619, 753, 1255, 1425, 1857, 3095, 3765, 4769, 6275, 9285, 11761, 14307, 15475, 18825, 23845, 35283, 46425, 58805, 71535, 119225, 155369, 176415, 294025, 357675, 466107, 776845, 882075, 2330535, 2952011, 3884225, 8856033, 11652675, 14760055, 44280165, 73800275, 221400825]

約数ペア:

[(1, 221400825), (3, 73800275), (5, 44280165), (15, 14760055), (19, 11652675), (25, 8856033), (57, 3884225), (75, 2952011), (95, 2330535), (251, 882075), (285, 776845), (475, 466107), (619, 357675), (753, 294025), (1255, 176415), (1425, 155369), (1857, 119225), (3095, 71535), (3765, 58805), (4769, 46425), (6275, 35283), (9285, 23845), (11761, 18825), (14307, 15475)]