20826900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{73}}^1\times {\mathrm{317}}^1$

素因数の和:410

約数の個数: 108

約数和(自身を含む): 66383772

約数和(自身を除く): 45556872

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 73, 75, 90, 100, 146, 150, 180, 219, 225, 292, 300, 317, 365, 438, 450, 634, 657, 730, 876, 900, 951, 1095, 1268, 1314, 1460, 1585, 1825, 1902, 2190, 2628, 2853, 3170, 3285, 3650, 3804, 4380, 4755, 5475, 5706, 6340, 6570, 7300, 7925, 9510, 10950, 11412, 13140, 14265, 15850, 16425, 19020, 21900, 23141, 23775, 28530, 31700, 32850, 46282, 47550, 57060, 65700, 69423, 71325, 92564, 95100, 115705, 138846, 142650, 208269, 231410, 277692, 285300, 347115, 416538, 462820, 578525, 694230, 833076, 1041345, 1157050, 1388460, 1735575, 2082690, 2314100, 3471150, 4165380, 5206725, 6942300, 10413450, 20826900]

約数ペア:

[(1, 20826900), (2, 10413450), (3, 6942300), (4, 5206725), (5, 4165380), (6, 3471150), (9, 2314100), (10, 2082690), (12, 1735575), (15, 1388460), (18, 1157050), (20, 1041345), (25, 833076), (30, 694230), (36, 578525), (45, 462820), (50, 416538), (60, 347115), (73, 285300), (75, 277692), (90, 231410), (100, 208269), (146, 142650), (150, 138846), (180, 115705), (219, 95100), (225, 92564), (292, 71325), (300, 69423), (317, 65700), (365, 57060), (438, 47550), (450, 46282), (634, 32850), (657, 31700), (730, 28530), (876, 23775), (900, 23141), (951, 21900), (1095, 19020), (1268, 16425), (1314, 15850), (1460, 14265), (1585, 13140), (1825, 11412), (1902, 10950), (2190, 9510), (2628, 7925), (2853, 7300), (3170, 6570), (3285, 6340), (3650, 5706), (3804, 5475), (4380, 4755)]