320487858

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:157

約数の個数: 144

約数和(自身を含む): 795015936

約数和(自身を除く): 474528078

約数列:

[1, 2, 3, 6, 9, 18, 19, 31, 37, 38, 43, 57, 62, 74, 86, 93, 111, 114, 129, 171, 186, 222, 258, 279, 333, 342, 361, 387, 558, 589, 666, 703, 722, 774, 817, 1083, 1147, 1178, 1333, 1406, 1591, 1634, 1767, 2109, 2166, 2294, 2451, 2666, 3182, 3249, 3441, 3534, 3999, 4218, 4773, 4902, 5301, 6327, 6498, 6882, 7353, 7998, 9546, 10323, 10602, 11191, 11997, 12654, 13357, 14319, 14706, 15523, 20646, 21793, 22382, 23994, 25327, 26714, 28638, 30229, 31046, 33573, 40071, 43586, 46569, 49321, 50654, 60458, 65379, 67146, 75981, 80142, 90687, 93138, 98642, 100719, 120213, 130758, 139707, 147963, 151962, 181374, 196137, 201438, 227943, 240426, 272061, 279414, 295926, 392274, 414067, 443889, 455886, 481213, 544122, 574351, 828134, 887778, 937099, 962426, 1148702, 1242201, 1443639, 1723053, 1874198, 2484402, 2811297, 2887278, 3446106, 3726603, 4330917, 5169159, 5622594, 7453206, 8433891, 8661834, 10338318, 16867782, 17804881, 35609762, 53414643, 106829286, 160243929, 320487858]

約数ペア:

[(1, 320487858), (2, 160243929), (3, 106829286), (6, 53414643), (9, 35609762), (18, 17804881), (19, 16867782), (31, 10338318), (37, 8661834), (38, 8433891), (43, 7453206), (57, 5622594), (62, 5169159), (74, 4330917), (86, 3726603), (93, 3446106), (111, 2887278), (114, 2811297), (129, 2484402), (171, 1874198), (186, 1723053), (222, 1443639), (258, 1242201), (279, 1148702), (333, 962426), (342, 937099), (361, 887778), (387, 828134), (558, 574351), (589, 544122), (666, 481213), (703, 455886), (722, 443889), (774, 414067), (817, 392274), (1083, 295926), (1147, 279414), (1178, 272061), (1333, 240426), (1406, 227943), (1591, 201438), (1634, 196137), (1767, 181374), (2109, 151962), (2166, 147963), (2294, 139707), (2451, 130758), (2666, 120213), (3182, 100719), (3249, 98642), (3441, 93138), (3534, 90687), (3999, 80142), (4218, 75981), (4773, 67146), (4902, 65379), (5301, 60458), (6327, 50654), (6498, 49321), (6882, 46569), (7353, 43586), (7998, 40071), (9546, 33573), (10323, 31046), (10602, 30229), (11191, 28638), (11997, 26714), (12654, 25327), (13357, 23994), (14319, 22382), (14706, 21793), (15523, 20646)]