20137860125

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{1019}}^1$

素因数の和:1263

約数の個数: 64

約数和(自身を含む): 27152236800

約数和(自身を除く): 7014376675

約数列:

[1, 5, 19, 25, 53, 95, 125, 157, 265, 475, 785, 1007, 1019, 1325, 2375, 2983, 3925, 5035, 5095, 6625, 8321, 14915, 19361, 19625, 25175, 25475, 41605, 54007, 74575, 96805, 125875, 127375, 158099, 159983, 208025, 270035, 372875, 484025, 790495, 799915, 1026133, 1040125, 1350175, 2420125, 3039677, 3952475, 3999575, 5130665, 6750875, 8479099, 15198385, 19762375, 19997875, 25653325, 42395495, 75991925, 128266625, 161102881, 211977475, 379959625, 805514405, 1059887375, 4027572025, 20137860125]

約数ペア:

[(1, 20137860125), (5, 4027572025), (19, 1059887375), (25, 805514405), (53, 379959625), (95, 211977475), (125, 161102881), (157, 128266625), (265, 75991925), (475, 42395495), (785, 25653325), (1007, 19997875), (1019, 19762375), (1325, 15198385), (2375, 8479099), (2983, 6750875), (3925, 5130665), (5035, 3999575), (5095, 3952475), (6625, 3039677), (8321, 2420125), (14915, 1350175), (19361, 1040125), (19625, 1026133), (25175, 799915), (25475, 790495), (41605, 484025), (54007, 372875), (74575, 270035), (96805, 208025), (125875, 159983), (127375, 158099)]