1979122500

素因数分解:

$2^2\times 3^2\times 5^4\times {\mathrm{87961}}^1$

素因数の和:87991

約数の個数: 90

約数和(自身を含む): 6251547302

約数和(自身を除く): 4272424802

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 125, 150, 180, 225, 250, 300, 375, 450, 500, 625, 750, 900, 1125, 1250, 1500, 1875, 2250, 2500, 3750, 4500, 5625, 7500, 11250, 22500, 87961, 175922, 263883, 351844, 439805, 527766, 791649, 879610, 1055532, 1319415, 1583298, 1759220, 2199025, 2638830, 3166596, 3958245, 4398050, 5277660, 6597075, 7916490, 8796100, 10995125, 13194150, 15832980, 19791225, 21990250, 26388300, 32985375, 39582450, 43980500, 54975625, 65970750, 79164900, 98956125, 109951250, 131941500, 164926875, 197912250, 219902500, 329853750, 395824500, 494780625, 659707500, 989561250, 1979122500]

約数ペア:

[(1, 1979122500), (2, 989561250), (3, 659707500), (4, 494780625), (5, 395824500), (6, 329853750), (9, 219902500), (10, 197912250), (12, 164926875), (15, 131941500), (18, 109951250), (20, 98956125), (25, 79164900), (30, 65970750), (36, 54975625), (45, 43980500), (50, 39582450), (60, 32985375), (75, 26388300), (90, 21990250), (100, 19791225), (125, 15832980), (150, 13194150), (180, 10995125), (225, 8796100), (250, 7916490), (300, 6597075), (375, 5277660), (450, 4398050), (500, 3958245), (625, 3166596), (750, 2638830), (900, 2199025), (1125, 1759220), (1250, 1583298), (1500, 1319415), (1875, 1055532), (2250, 879610), (2500, 791649), (3750, 527766), (4500, 439805), (5625, 351844), (7500, 263883), (11250, 175922), (22500, 87961)]