28572700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{709}}^1$

素因数の和:767

約数の個数: 72

約数和(自身を含む): 69023360

約数和(自身を除く): 40450660

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 31, 50, 52, 62, 65, 100, 124, 130, 155, 260, 310, 325, 403, 620, 650, 709, 775, 806, 1300, 1418, 1550, 1612, 2015, 2836, 3100, 3545, 4030, 7090, 8060, 9217, 10075, 14180, 17725, 18434, 20150, 21979, 35450, 36868, 40300, 43958, 46085, 70900, 87916, 92170, 109895, 184340, 219790, 230425, 285727, 439580, 460850, 549475, 571454, 921700, 1098950, 1142908, 1428635, 2197900, 2857270, 5714540, 7143175, 14286350, 28572700]

約数ペア:

[(1, 28572700), (2, 14286350), (4, 7143175), (5, 5714540), (10, 2857270), (13, 2197900), (20, 1428635), (25, 1142908), (26, 1098950), (31, 921700), (50, 571454), (52, 549475), (62, 460850), (65, 439580), (100, 285727), (124, 230425), (130, 219790), (155, 184340), (260, 109895), (310, 92170), (325, 87916), (403, 70900), (620, 46085), (650, 43958), (709, 40300), (775, 36868), (806, 35450), (1300, 21979), (1418, 20150), (1550, 18434), (1612, 17725), (2015, 14180), (2836, 10075), (3100, 9217), (3545, 8060), (4030, 7090)]