18827820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{257}}^1$

素因数の和:320

約数の個数: 144

約数和(自身を含む): 64235808

約数和(自身を除く): 45407988

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 37, 44, 45, 55, 60, 66, 74, 90, 99, 110, 111, 132, 148, 165, 180, 185, 198, 220, 222, 257, 330, 333, 370, 396, 407, 444, 495, 514, 555, 660, 666, 740, 771, 814, 990, 1028, 1110, 1221, 1285, 1332, 1542, 1628, 1665, 1980, 2035, 2220, 2313, 2442, 2570, 2827, 3084, 3330, 3663, 3855, 4070, 4626, 4884, 5140, 5654, 6105, 6660, 7326, 7710, 8140, 8481, 9252, 9509, 11308, 11565, 12210, 14135, 14652, 15420, 16962, 18315, 19018, 23130, 24420, 25443, 28270, 28527, 33924, 36630, 38036, 42405, 46260, 47545, 50886, 56540, 57054, 73260, 84810, 85581, 95090, 101772, 104599, 114108, 127215, 142635, 169620, 171162, 190180, 209198, 254430, 285270, 313797, 342324, 418396, 427905, 508860, 522995, 570540, 627594, 855810, 941391, 1045990, 1255188, 1568985, 1711620, 1882782, 2091980, 3137970, 3765564, 4706955, 6275940, 9413910, 18827820]

約数ペア:

[(1, 18827820), (2, 9413910), (3, 6275940), (4, 4706955), (5, 3765564), (6, 3137970), (9, 2091980), (10, 1882782), (11, 1711620), (12, 1568985), (15, 1255188), (18, 1045990), (20, 941391), (22, 855810), (30, 627594), (33, 570540), (36, 522995), (37, 508860), (44, 427905), (45, 418396), (55, 342324), (60, 313797), (66, 285270), (74, 254430), (90, 209198), (99, 190180), (110, 171162), (111, 169620), (132, 142635), (148, 127215), (165, 114108), (180, 104599), (185, 101772), (198, 95090), (220, 85581), (222, 84810), (257, 73260), (330, 57054), (333, 56540), (370, 50886), (396, 47545), (407, 46260), (444, 42405), (495, 38036), (514, 36630), (555, 33924), (660, 28527), (666, 28270), (740, 25443), (771, 24420), (814, 23130), (990, 19018), (1028, 18315), (1110, 16962), (1221, 15420), (1285, 14652), (1332, 14135), (1542, 12210), (1628, 11565), (1665, 11308), (1980, 9509), (2035, 9252), (2220, 8481), (2313, 8140), (2442, 7710), (2570, 7326), (2827, 6660), (3084, 6105), (3330, 5654), (3663, 5140), (3855, 4884), (4070, 4626)]