21990959900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{345227}}^1$

素因数の和:345268

約数の個数: 108

約数和(自身を含む): 59781751848

約数和(自身を除く): 37790791948

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 49, 50, 52, 65, 70, 91, 98, 100, 130, 140, 175, 182, 196, 245, 260, 325, 350, 364, 455, 490, 637, 650, 700, 910, 980, 1225, 1274, 1300, 1820, 2275, 2450, 2548, 3185, 4550, 4900, 6370, 9100, 12740, 15925, 31850, 63700, 345227, 690454, 1380908, 1726135, 2416589, 3452270, 4487951, 4833178, 6904540, 8630675, 8975902, 9666356, 12082945, 16916123, 17261350, 17951804, 22439755, 24165890, 31415657, 33832246, 34522700, 44879510, 48331780, 60414725, 62831314, 67664492, 84580615, 89759020, 112198775, 120829450, 125662628, 157078285, 169161230, 219909599, 224397550, 241658900, 314156570, 338322460, 422903075, 439819198, 448795100, 628313140, 785391425, 845806150, 879638396, 1099547995, 1570782850, 1691612300, 2199095990, 3141565700, 4398191980, 5497739975, 10995479950, 21990959900]

約数ペア:

[(1, 21990959900), (2, 10995479950), (4, 5497739975), (5, 4398191980), (7, 3141565700), (10, 2199095990), (13, 1691612300), (14, 1570782850), (20, 1099547995), (25, 879638396), (26, 845806150), (28, 785391425), (35, 628313140), (49, 448795100), (50, 439819198), (52, 422903075), (65, 338322460), (70, 314156570), (91, 241658900), (98, 224397550), (100, 219909599), (130, 169161230), (140, 157078285), (175, 125662628), (182, 120829450), (196, 112198775), (245, 89759020), (260, 84580615), (325, 67664492), (350, 62831314), (364, 60414725), (455, 48331780), (490, 44879510), (637, 34522700), (650, 33832246), (700, 31415657), (910, 24165890), (980, 22439755), (1225, 17951804), (1274, 17261350), (1300, 16916123), (1820, 12082945), (2275, 9666356), (2450, 8975902), (2548, 8630675), (3185, 6904540), (4550, 4833178), (4900, 4487951), (6370, 3452270), (9100, 2416589), (12740, 1726135), (15925, 1380908), (31850, 690454), (63700, 345227)]