551460455

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{41}}^2\times {\mathrm{103}}^1$

素因数の和:217

約数の個数: 72

約数和(自身を含む): 857971296

約数和(自身を除く): 306510841

約数列:

[1, 5, 7, 13, 35, 41, 49, 65, 91, 103, 205, 245, 287, 455, 515, 533, 637, 721, 1339, 1435, 1681, 2009, 2665, 3185, 3605, 3731, 4223, 5047, 6695, 8405, 9373, 10045, 11767, 18655, 21115, 21853, 25235, 26117, 29561, 46865, 54899, 58835, 65611, 82369, 109265, 130585, 147805, 152971, 173143, 206927, 274495, 328055, 384293, 411845, 764855, 865715, 1034635, 1070797, 1212001, 1921465, 2250859, 2690051, 5353985, 6060005, 8484007, 11254295, 13450255, 15756013, 42420035, 78780065, 110292091, 551460455]

約数ペア:

[(1, 551460455), (5, 110292091), (7, 78780065), (13, 42420035), (35, 15756013), (41, 13450255), (49, 11254295), (65, 8484007), (91, 6060005), (103, 5353985), (205, 2690051), (245, 2250859), (287, 1921465), (455, 1212001), (515, 1070797), (533, 1034635), (637, 865715), (721, 764855), (1339, 411845), (1435, 384293), (1681, 328055), (2009, 274495), (2665, 206927), (3185, 173143), (3605, 152971), (3731, 147805), (4223, 130585), (5047, 109265), (6695, 82369), (8405, 65611), (9373, 58835), (10045, 54899), (11767, 46865), (18655, 29561), (21115, 26117), (21853, 25235)]