19998712500

素因数分解:

$2^2\times 3^1\times 5^5\times {\mathrm{13}}^1\times {\mathrm{41023}}^1$

素因数の和:41068

約数の個数: 144

約数和(自身を含む): 62813979648

約数和(自身を除く): 42815267148

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 125, 130, 150, 156, 195, 250, 260, 300, 325, 375, 390, 500, 625, 650, 750, 780, 975, 1250, 1300, 1500, 1625, 1875, 1950, 2500, 3125, 3250, 3750, 3900, 4875, 6250, 6500, 7500, 8125, 9375, 9750, 12500, 16250, 18750, 19500, 24375, 32500, 37500, 40625, 41023, 48750, 81250, 82046, 97500, 121875, 123069, 162500, 164092, 205115, 243750, 246138, 410230, 487500, 492276, 533299, 615345, 820460, 1025575, 1066598, 1230690, 1599897, 2051150, 2133196, 2461380, 2666495, 3076725, 3199794, 4102300, 5127875, 5332990, 6153450, 6399588, 7999485, 10255750, 10665980, 12306900, 13332475, 15383625, 15998970, 20511500, 25639375, 26664950, 30767250, 31997940, 39997425, 51278750, 53329900, 61534500, 66662375, 76918125, 79994850, 102557500, 128196875, 133324750, 153836250, 159989700, 199987125, 256393750, 266649500, 307672500, 333311875, 384590625, 399974250, 512787500, 666623750, 769181250, 799948500, 999935625, 1333247500, 1538362500, 1666559375, 1999871250, 3333118750, 3999742500, 4999678125, 6666237500, 9999356250, 19998712500]

約数ペア:

[(1, 19998712500), (2, 9999356250), (3, 6666237500), (4, 4999678125), (5, 3999742500), (6, 3333118750), (10, 1999871250), (12, 1666559375), (13, 1538362500), (15, 1333247500), (20, 999935625), (25, 799948500), (26, 769181250), (30, 666623750), (39, 512787500), (50, 399974250), (52, 384590625), (60, 333311875), (65, 307672500), (75, 266649500), (78, 256393750), (100, 199987125), (125, 159989700), (130, 153836250), (150, 133324750), (156, 128196875), (195, 102557500), (250, 79994850), (260, 76918125), (300, 66662375), (325, 61534500), (375, 53329900), (390, 51278750), (500, 39997425), (625, 31997940), (650, 30767250), (750, 26664950), (780, 25639375), (975, 20511500), (1250, 15998970), (1300, 15383625), (1500, 13332475), (1625, 12306900), (1875, 10665980), (1950, 10255750), (2500, 7999485), (3125, 6399588), (3250, 6153450), (3750, 5332990), (3900, 5127875), (4875, 4102300), (6250, 3199794), (6500, 3076725), (7500, 2666495), (8125, 2461380), (9375, 2133196), (9750, 2051150), (12500, 1599897), (16250, 1230690), (18750, 1066598), (19500, 1025575), (24375, 820460), (32500, 615345), (37500, 533299), (40625, 492276), (41023, 487500), (48750, 410230), (81250, 246138), (82046, 243750), (97500, 205115), (121875, 164092), (123069, 162500)]