28997032900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^3\times {\mathrm{217859}}^1$

素因数の和:217906

約数の個数: 72

約数和(自身を含む): 69211507680

約数和(自身を除く): 40214474780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 121, 220, 242, 275, 484, 550, 605, 1100, 1210, 1331, 2420, 2662, 3025, 5324, 6050, 6655, 12100, 13310, 26620, 33275, 66550, 133100, 217859, 435718, 871436, 1089295, 2178590, 2396449, 4357180, 4792898, 5446475, 9585796, 10892950, 11982245, 21785900, 23964490, 26360939, 47928980, 52721878, 59911225, 105443756, 119822450, 131804695, 239644900, 263609390, 289970329, 527218780, 579940658, 659023475, 1159881316, 1318046950, 1449851645, 2636093900, 2899703290, 5799406580, 7249258225, 14498516450, 28997032900]

約数ペア:

[(1, 28997032900), (2, 14498516450), (4, 7249258225), (5, 5799406580), (10, 2899703290), (11, 2636093900), (20, 1449851645), (22, 1318046950), (25, 1159881316), (44, 659023475), (50, 579940658), (55, 527218780), (100, 289970329), (110, 263609390), (121, 239644900), (220, 131804695), (242, 119822450), (275, 105443756), (484, 59911225), (550, 52721878), (605, 47928980), (1100, 26360939), (1210, 23964490), (1331, 21785900), (2420, 11982245), (2662, 10892950), (3025, 9585796), (5324, 5446475), (6050, 4792898), (6655, 4357180), (12100, 2396449), (13310, 2178590), (26620, 1089295), (33275, 871436), (66550, 435718), (133100, 217859)]