18969675

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 33331200

約数和(自身を除く): 14361525

約数列:

[1, 3, 5, 15, 25, 31, 41, 75, 93, 123, 155, 199, 205, 465, 597, 615, 775, 995, 1025, 1271, 2325, 2985, 3075, 3813, 4975, 6169, 6355, 8159, 14925, 18507, 19065, 24477, 30845, 31775, 40795, 92535, 95325, 122385, 154225, 203975, 252929, 462675, 611925, 758787, 1264645, 3793935, 6323225, 18969675]

約数ペア:

[(1, 18969675), (3, 6323225), (5, 3793935), (15, 1264645), (25, 758787), (31, 611925), (41, 462675), (75, 252929), (93, 203975), (123, 154225), (155, 122385), (199, 95325), (205, 92535), (465, 40795), (597, 31775), (615, 30845), (775, 24477), (995, 19065), (1025, 18507), (1271, 14925), (2325, 8159), (2985, 6355), (3075, 6169), (3813, 4975)]