205171980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{15473}}^1$

素因数の和:15515

約数の個数: 96

約数和(自身を含む): 655107264

約数和(自身を除く): 449935284

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 17, 20, 26, 30, 34, 39, 51, 52, 60, 65, 68, 78, 85, 102, 130, 156, 170, 195, 204, 221, 255, 260, 340, 390, 442, 510, 663, 780, 884, 1020, 1105, 1326, 2210, 2652, 3315, 4420, 6630, 13260, 15473, 30946, 46419, 61892, 77365, 92838, 154730, 185676, 201149, 232095, 263041, 309460, 402298, 464190, 526082, 603447, 789123, 804596, 928380, 1005745, 1052164, 1206894, 1315205, 1578246, 2011490, 2413788, 2630410, 3017235, 3156492, 3419533, 3945615, 4022980, 5260820, 6034470, 6839066, 7891230, 10258599, 12068940, 13678132, 15782460, 17097665, 20517198, 34195330, 41034396, 51292995, 68390660, 102585990, 205171980]

約数ペア:

[(1, 205171980), (2, 102585990), (3, 68390660), (4, 51292995), (5, 41034396), (6, 34195330), (10, 20517198), (12, 17097665), (13, 15782460), (15, 13678132), (17, 12068940), (20, 10258599), (26, 7891230), (30, 6839066), (34, 6034470), (39, 5260820), (51, 4022980), (52, 3945615), (60, 3419533), (65, 3156492), (68, 3017235), (78, 2630410), (85, 2413788), (102, 2011490), (130, 1578246), (156, 1315205), (170, 1206894), (195, 1052164), (204, 1005745), (221, 928380), (255, 804596), (260, 789123), (340, 603447), (390, 526082), (442, 464190), (510, 402298), (663, 309460), (780, 263041), (884, 232095), (1020, 201149), (1105, 185676), (1326, 154730), (2210, 92838), (2652, 77365), (3315, 61892), (4420, 46419), (6630, 30946), (13260, 15473)]