79978500

素因数分解:

$2^2\times 3^2\times 5^3\times 7^1\times {\mathrm{2539}}^1$

素因数の和:2571

約数の個数: 144

約数和(自身を含む): 288462720

約数和(自身を除く): 208484220

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 28, 30, 35, 36, 42, 45, 50, 60, 63, 70, 75, 84, 90, 100, 105, 125, 126, 140, 150, 175, 180, 210, 225, 250, 252, 300, 315, 350, 375, 420, 450, 500, 525, 630, 700, 750, 875, 900, 1050, 1125, 1260, 1500, 1575, 1750, 2100, 2250, 2539, 2625, 3150, 3500, 4500, 5078, 5250, 6300, 7617, 7875, 10156, 10500, 12695, 15234, 15750, 17773, 22851, 25390, 30468, 31500, 35546, 38085, 45702, 50780, 53319, 63475, 71092, 76170, 88865, 91404, 106638, 114255, 126950, 152340, 159957, 177730, 190425, 213276, 228510, 253900, 266595, 317375, 319914, 355460, 380850, 444325, 457020, 533190, 571275, 634750, 639828, 761700, 799785, 888650, 952125, 1066380, 1142550, 1269500, 1332975, 1599570, 1777300, 1904250, 2221625, 2285100, 2665950, 2856375, 3199140, 3808500, 3998925, 4443250, 5331900, 5712750, 6664875, 7997850, 8886500, 11425500, 13329750, 15995700, 19994625, 26659500, 39989250, 79978500]

約数ペア:

[(1, 79978500), (2, 39989250), (3, 26659500), (4, 19994625), (5, 15995700), (6, 13329750), (7, 11425500), (9, 8886500), (10, 7997850), (12, 6664875), (14, 5712750), (15, 5331900), (18, 4443250), (20, 3998925), (21, 3808500), (25, 3199140), (28, 2856375), (30, 2665950), (35, 2285100), (36, 2221625), (42, 1904250), (45, 1777300), (50, 1599570), (60, 1332975), (63, 1269500), (70, 1142550), (75, 1066380), (84, 952125), (90, 888650), (100, 799785), (105, 761700), (125, 639828), (126, 634750), (140, 571275), (150, 533190), (175, 457020), (180, 444325), (210, 380850), (225, 355460), (250, 319914), (252, 317375), (300, 266595), (315, 253900), (350, 228510), (375, 213276), (420, 190425), (450, 177730), (500, 159957), (525, 152340), (630, 126950), (700, 114255), (750, 106638), (875, 91404), (900, 88865), (1050, 76170), (1125, 71092), (1260, 63475), (1500, 53319), (1575, 50780), (1750, 45702), (2100, 38085), (2250, 35546), (2539, 31500), (2625, 30468), (3150, 25390), (3500, 22851), (4500, 17773), (5078, 15750), (5250, 15234), (6300, 12695), (7617, 10500), (7875, 10156)]