18734540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:159

約数の個数: 96

約数和(自身を含む): 46061568

約数和(自身を除く): 27327028

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 41, 44, 55, 62, 67, 82, 110, 124, 134, 155, 164, 205, 220, 268, 310, 335, 341, 410, 451, 620, 670, 682, 737, 820, 902, 1271, 1340, 1364, 1474, 1705, 1804, 2077, 2255, 2542, 2747, 2948, 3410, 3685, 4154, 4510, 5084, 5494, 6355, 6820, 7370, 8308, 9020, 10385, 10988, 12710, 13735, 13981, 14740, 20770, 22847, 25420, 27470, 27962, 30217, 41540, 45694, 54940, 55924, 60434, 69905, 85157, 91388, 114235, 120868, 139810, 151085, 170314, 228470, 279620, 302170, 340628, 425785, 456940, 604340, 851570, 936727, 1703140, 1873454, 3746908, 4683635, 9367270, 18734540]

約数ペア:

[(1, 18734540), (2, 9367270), (4, 4683635), (5, 3746908), (10, 1873454), (11, 1703140), (20, 936727), (22, 851570), (31, 604340), (41, 456940), (44, 425785), (55, 340628), (62, 302170), (67, 279620), (82, 228470), (110, 170314), (124, 151085), (134, 139810), (155, 120868), (164, 114235), (205, 91388), (220, 85157), (268, 69905), (310, 60434), (335, 55924), (341, 54940), (410, 45694), (451, 41540), (620, 30217), (670, 27962), (682, 27470), (737, 25420), (820, 22847), (902, 20770), (1271, 14740), (1340, 13981), (1364, 13735), (1474, 12710), (1705, 10988), (1804, 10385), (2077, 9020), (2255, 8308), (2542, 7370), (2747, 6820), (2948, 6355), (3410, 5494), (3685, 5084), (4154, 4510)]