18777746325

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{263}}^1$

素因数の和:476

約数の個数: 144

約数和(自身を含む): 34793915904

約数和(自身を除く): 16016169579

約数列:

[1, 3, 5, 13, 15, 25, 39, 43, 65, 75, 129, 131, 169, 195, 215, 263, 325, 393, 507, 559, 645, 655, 789, 845, 975, 1075, 1315, 1677, 1703, 1965, 2535, 2795, 3225, 3275, 3419, 3945, 4225, 5109, 5633, 6575, 7267, 8385, 8515, 9825, 10257, 11309, 12675, 13975, 16899, 17095, 19725, 21801, 22139, 25545, 28165, 33927, 34453, 36335, 41925, 42575, 44447, 51285, 56545, 66417, 73229, 84495, 85475, 103359, 109005, 110695, 127725, 133341, 140825, 147017, 169635, 172265, 181675, 219687, 222235, 256425, 282725, 332085, 366145, 422475, 441051, 447889, 516795, 545025, 553475, 666705, 735085, 848175, 861325, 951977, 1098435, 1111175, 1343667, 1481479, 1660425, 1830725, 1911221, 2205255, 2239445, 2583975, 2855931, 3333525, 3675425, 4444437, 4759885, 5492175, 5733663, 5822557, 6718335, 7407395, 9556105, 11026275, 11197225, 14279655, 17467671, 19259227, 22222185, 23799425, 28668315, 29112785, 33591675, 37036975, 47780525, 57777681, 71398275, 87338355, 96296135, 111110925, 143341575, 145563925, 250369951, 288888405, 436691775, 481480675, 751109853, 1251849755, 1444442025, 3755549265, 6259248775, 18777746325]

約数ペア:

[(1, 18777746325), (3, 6259248775), (5, 3755549265), (13, 1444442025), (15, 1251849755), (25, 751109853), (39, 481480675), (43, 436691775), (65, 288888405), (75, 250369951), (129, 145563925), (131, 143341575), (169, 111110925), (195, 96296135), (215, 87338355), (263, 71398275), (325, 57777681), (393, 47780525), (507, 37036975), (559, 33591675), (645, 29112785), (655, 28668315), (789, 23799425), (845, 22222185), (975, 19259227), (1075, 17467671), (1315, 14279655), (1677, 11197225), (1703, 11026275), (1965, 9556105), (2535, 7407395), (2795, 6718335), (3225, 5822557), (3275, 5733663), (3419, 5492175), (3945, 4759885), (4225, 4444437), (5109, 3675425), (5633, 3333525), (6575, 2855931), (7267, 2583975), (8385, 2239445), (8515, 2205255), (9825, 1911221), (10257, 1830725), (11309, 1660425), (12675, 1481479), (13975, 1343667), (16899, 1111175), (17095, 1098435), (19725, 951977), (21801, 861325), (22139, 848175), (25545, 735085), (28165, 666705), (33927, 553475), (34453, 545025), (36335, 516795), (41925, 447889), (42575, 441051), (44447, 422475), (51285, 366145), (56545, 332085), (66417, 282725), (73229, 256425), (84495, 222235), (85475, 219687), (103359, 181675), (109005, 172265), (110695, 169635), (127725, 147017), (133341, 140825)]