28102500

素因数分解:

$2^2\times 3^2\times 5^4\times {\mathrm{1249}}^1$

素因数の和:1279

約数の個数: 90

約数和(自身を含む): 88838750

約数和(自身を除く): 60736250

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, 1249, 1250, 1500, 1875, 2250, 2498, 2500, 3747, 3750, 4500, 4996, 5625, 6245, 7494, 7500, 11241, 11250, 12490, 14988, 18735, 22482, 22500, 24980, 31225, 37470, 44964, 56205, 62450, 74940, 93675, 112410, 124900, 156125, 187350, 224820, 281025, 312250, 374700, 468375, 562050, 624500, 780625, 936750, 1124100, 1405125, 1561250, 1873500, 2341875, 2810250, 3122500, 4683750, 5620500, 7025625, 9367500, 14051250, 28102500]

約数ペア:

[(1, 28102500), (2, 14051250), (3, 9367500), (4, 7025625), (5, 5620500), (6, 4683750), (9, 3122500), (10, 2810250), (12, 2341875), (15, 1873500), (18, 1561250), (20, 1405125), (25, 1124100), (30, 936750), (36, 780625), (45, 624500), (50, 562050), (60, 468375), (75, 374700), (90, 312250), (100, 281025), (125, 224820), (150, 187350), (180, 156125), (225, 124900), (250, 112410), (300, 93675), (375, 74940), (450, 62450), (500, 56205), (625, 44964), (750, 37470), (900, 31225), (1125, 24980), (1249, 22500), (1250, 22482), (1500, 18735), (1875, 14988), (2250, 12490), (2498, 11250), (2500, 11241), (3747, 7500), (3750, 7494), (4500, 6245), (4996, 5625)]