21056550050

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{152639}}^1$

素因数の和:152771

約数の個数: 48

約数和(自身を含む): 40883097600

約数和(自身を除く): 19826547550

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 89, 155, 178, 310, 445, 775, 890, 1550, 2225, 2759, 4450, 5518, 13795, 27590, 68975, 137950, 152639, 305278, 763195, 1526390, 3815975, 4731809, 7631950, 9463618, 13584871, 23659045, 27169742, 47318090, 67924355, 118295225, 135848710, 236590450, 339621775, 421131001, 679243550, 842262002, 2105655005, 4211310010, 10528275025, 21056550050]

約数ペア:

[(1, 21056550050), (2, 10528275025), (5, 4211310010), (10, 2105655005), (25, 842262002), (31, 679243550), (50, 421131001), (62, 339621775), (89, 236590450), (155, 135848710), (178, 118295225), (310, 67924355), (445, 47318090), (775, 27169742), (890, 23659045), (1550, 13584871), (2225, 9463618), (2759, 7631950), (4450, 4731809), (5518, 3815975), (13795, 1526390), (27590, 763195), (68975, 305278), (137950, 152639)]