21487500

素因数分解:

$2^2\times 3^2\times 5^5\times {\mathrm{191}}^1$

素因数の和:226

約数の個数: 108

約数和(自身を含む): 68245632

約数和(自身を除く): 46758132

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, 191, 225, 250, 300, 375, 382, 450, 500, 573, 625, 750, 764, 900, 955, 1125, 1146, 1250, 1500, 1719, 1875, 1910, 2250, 2292, 2500, 2865, 3125, 3438, 3750, 3820, 4500, 4775, 5625, 5730, 6250, 6876, 7500, 8595, 9375, 9550, 11250, 11460, 12500, 14325, 17190, 18750, 19100, 22500, 23875, 28125, 28650, 34380, 37500, 42975, 47750, 56250, 57300, 71625, 85950, 95500, 112500, 119375, 143250, 171900, 214875, 238750, 286500, 358125, 429750, 477500, 596875, 716250, 859500, 1074375, 1193750, 1432500, 1790625, 2148750, 2387500, 3581250, 4297500, 5371875, 7162500, 10743750, 21487500]

約数ペア:

[(1, 21487500), (2, 10743750), (3, 7162500), (4, 5371875), (5, 4297500), (6, 3581250), (9, 2387500), (10, 2148750), (12, 1790625), (15, 1432500), (18, 1193750), (20, 1074375), (25, 859500), (30, 716250), (36, 596875), (45, 477500), (50, 429750), (60, 358125), (75, 286500), (90, 238750), (100, 214875), (125, 171900), (150, 143250), (180, 119375), (191, 112500), (225, 95500), (250, 85950), (300, 71625), (375, 57300), (382, 56250), (450, 47750), (500, 42975), (573, 37500), (625, 34380), (750, 28650), (764, 28125), (900, 23875), (955, 22500), (1125, 19100), (1146, 18750), (1250, 17190), (1500, 14325), (1719, 12500), (1875, 11460), (1910, 11250), (2250, 9550), (2292, 9375), (2500, 8595), (2865, 7500), (3125, 6876), (3438, 6250), (3750, 5730), (3820, 5625), (4500, 4775)]