19605420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:224

約数の個数: 144

約数和(自身を含む): 64864800

約数和(自身を除く): 45259380

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, 149, 153, 170, 172, 180, 204, 215, 255, 258, 298, 306, 340, 387, 430, 447, 510, 516, 596, 612, 645, 731, 745, 765, 774, 860, 894, 1020, 1290, 1341, 1462, 1490, 1530, 1548, 1788, 1935, 2193, 2235, 2533, 2580, 2682, 2924, 2980, 3060, 3655, 3870, 4386, 4470, 5066, 5364, 6407, 6579, 6705, 7310, 7599, 7740, 8772, 8940, 10132, 10965, 12665, 12814, 13158, 13410, 14620, 15198, 19221, 21930, 22797, 25330, 25628, 26316, 26820, 30396, 32035, 32895, 37995, 38442, 43860, 45594, 50660, 57663, 64070, 65790, 75990, 76884, 91188, 96105, 108919, 113985, 115326, 128140, 131580, 151980, 192210, 217838, 227970, 230652, 288315, 326757, 384420, 435676, 455940, 544595, 576630, 653514, 980271, 1089190, 1153260, 1307028, 1633785, 1960542, 2178380, 3267570, 3921084, 4901355, 6535140, 9802710, 19605420]

約数ペア:

[(1, 19605420), (2, 9802710), (3, 6535140), (4, 4901355), (5, 3921084), (6, 3267570), (9, 2178380), (10, 1960542), (12, 1633785), (15, 1307028), (17, 1153260), (18, 1089190), (20, 980271), (30, 653514), (34, 576630), (36, 544595), (43, 455940), (45, 435676), (51, 384420), (60, 326757), (68, 288315), (85, 230652), (86, 227970), (90, 217838), (102, 192210), (129, 151980), (149, 131580), (153, 128140), (170, 115326), (172, 113985), (180, 108919), (204, 96105), (215, 91188), (255, 76884), (258, 75990), (298, 65790), (306, 64070), (340, 57663), (387, 50660), (430, 45594), (447, 43860), (510, 38442), (516, 37995), (596, 32895), (612, 32035), (645, 30396), (731, 26820), (745, 26316), (765, 25628), (774, 25330), (860, 22797), (894, 21930), (1020, 19221), (1290, 15198), (1341, 14620), (1462, 13410), (1490, 13158), (1530, 12814), (1548, 12665), (1788, 10965), (1935, 10132), (2193, 8940), (2235, 8772), (2533, 7740), (2580, 7599), (2682, 7310), (2924, 6705), (2980, 6579), (3060, 6407), (3655, 5364), (3870, 5066), (4386, 4470)]