2401980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:88

約数の個数: 144

約数和(自身を含む): 8426880

約数和(自身を除く): 6024900

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 43, 49, 57, 60, 70, 76, 84, 86, 95, 98, 105, 114, 129, 133, 140, 147, 172, 190, 196, 210, 215, 228, 245, 258, 266, 285, 294, 301, 380, 399, 420, 430, 490, 516, 532, 570, 588, 602, 645, 665, 735, 798, 817, 860, 903, 931, 980, 1140, 1204, 1290, 1330, 1470, 1505, 1596, 1634, 1806, 1862, 1995, 2107, 2451, 2580, 2660, 2793, 2940, 3010, 3268, 3612, 3724, 3990, 4085, 4214, 4515, 4655, 4902, 5586, 5719, 6020, 6321, 7980, 8170, 8428, 9030, 9310, 9804, 10535, 11172, 11438, 12255, 12642, 13965, 16340, 17157, 18060, 18620, 21070, 22876, 24510, 25284, 27930, 28595, 31605, 34314, 40033, 42140, 49020, 55860, 57190, 63210, 68628, 80066, 85785, 114380, 120099, 126420, 160132, 171570, 200165, 240198, 343140, 400330, 480396, 600495, 800660, 1200990, 2401980]

約数ペア:

[(1, 2401980), (2, 1200990), (3, 800660), (4, 600495), (5, 480396), (6, 400330), (7, 343140), (10, 240198), (12, 200165), (14, 171570), (15, 160132), (19, 126420), (20, 120099), (21, 114380), (28, 85785), (30, 80066), (35, 68628), (38, 63210), (42, 57190), (43, 55860), (49, 49020), (57, 42140), (60, 40033), (70, 34314), (76, 31605), (84, 28595), (86, 27930), (95, 25284), (98, 24510), (105, 22876), (114, 21070), (129, 18620), (133, 18060), (140, 17157), (147, 16340), (172, 13965), (190, 12642), (196, 12255), (210, 11438), (215, 11172), (228, 10535), (245, 9804), (258, 9310), (266, 9030), (285, 8428), (294, 8170), (301, 7980), (380, 6321), (399, 6020), (420, 5719), (430, 5586), (490, 4902), (516, 4655), (532, 4515), (570, 4214), (588, 4085), (602, 3990), (645, 3724), (665, 3612), (735, 3268), (798, 3010), (817, 2940), (860, 2793), (903, 2660), (931, 2580), (980, 2451), (1140, 2107), (1204, 1995), (1290, 1862), (1330, 1806), (1470, 1634), (1505, 1596)]