25131780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1$

素因数の和:266

約数の個数: 144

約数和(自身を含む): 83026944

約数和(自身を除く): 57895164

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 43, 45, 51, 60, 68, 85, 86, 90, 102, 129, 153, 170, 172, 180, 191, 204, 215, 255, 258, 306, 340, 382, 387, 430, 510, 516, 573, 612, 645, 731, 764, 765, 774, 860, 955, 1020, 1146, 1290, 1462, 1530, 1548, 1719, 1910, 1935, 2193, 2292, 2580, 2865, 2924, 3060, 3247, 3438, 3655, 3820, 3870, 4386, 5730, 6494, 6579, 6876, 7310, 7740, 8213, 8595, 8772, 9741, 10965, 11460, 12988, 13158, 14620, 16235, 16426, 17190, 19482, 21930, 24639, 26316, 29223, 32470, 32852, 32895, 34380, 38964, 41065, 43860, 48705, 49278, 58446, 64940, 65790, 73917, 82130, 97410, 98556, 116892, 123195, 131580, 139621, 146115, 147834, 164260, 194820, 246390, 279242, 292230, 295668, 369585, 418863, 492780, 558484, 584460, 698105, 739170, 837726, 1256589, 1396210, 1478340, 1675452, 2094315, 2513178, 2792420, 4188630, 5026356, 6282945, 8377260, 12565890, 25131780]

約数ペア:

[(1, 25131780), (2, 12565890), (3, 8377260), (4, 6282945), (5, 5026356), (6, 4188630), (9, 2792420), (10, 2513178), (12, 2094315), (15, 1675452), (17, 1478340), (18, 1396210), (20, 1256589), (30, 837726), (34, 739170), (36, 698105), (43, 584460), (45, 558484), (51, 492780), (60, 418863), (68, 369585), (85, 295668), (86, 292230), (90, 279242), (102, 246390), (129, 194820), (153, 164260), (170, 147834), (172, 146115), (180, 139621), (191, 131580), (204, 123195), (215, 116892), (255, 98556), (258, 97410), (306, 82130), (340, 73917), (382, 65790), (387, 64940), (430, 58446), (510, 49278), (516, 48705), (573, 43860), (612, 41065), (645, 38964), (731, 34380), (764, 32895), (765, 32852), (774, 32470), (860, 29223), (955, 26316), (1020, 24639), (1146, 21930), (1290, 19482), (1462, 17190), (1530, 16426), (1548, 16235), (1719, 14620), (1910, 13158), (1935, 12988), (2193, 11460), (2292, 10965), (2580, 9741), (2865, 8772), (2924, 8595), (3060, 8213), (3247, 7740), (3438, 7310), (3655, 6876), (3820, 6579), (3870, 6494), (4386, 5730)]