205215350

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{3079}}^1$

素因数の和:3165

約数の個数: 48

約数和(自身を含む): 403307520

約数和(自身を除く): 198092170

約数列:

[1, 2, 5, 10, 25, 31, 43, 50, 62, 86, 155, 215, 310, 430, 775, 1075, 1333, 1550, 2150, 2666, 3079, 6158, 6665, 13330, 15395, 30790, 33325, 66650, 76975, 95449, 132397, 153950, 190898, 264794, 477245, 661985, 954490, 1323970, 2386225, 3309925, 4104307, 4772450, 6619850, 8208614, 20521535, 41043070, 102607675, 205215350]

約数ペア:

[(1, 205215350), (2, 102607675), (5, 41043070), (10, 20521535), (25, 8208614), (31, 6619850), (43, 4772450), (50, 4104307), (62, 3309925), (86, 2386225), (155, 1323970), (215, 954490), (310, 661985), (430, 477245), (775, 264794), (1075, 190898), (1333, 153950), (1550, 132397), (2150, 95449), (2666, 76975), (3079, 66650), (6158, 33325), (6665, 30790), (13330, 15395)]