1388890072

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{71}}^1\times {\mathrm{8461}}^1$

素因数の和:8572

約数の個数: 48

約数和(自身を含む): 2805660720

約数和(自身を除く): 1416770648

約数列:

[1, 2, 4, 8, 17, 34, 68, 71, 136, 142, 284, 289, 568, 578, 1156, 1207, 2312, 2414, 4828, 8461, 9656, 16922, 20519, 33844, 41038, 67688, 82076, 143837, 164152, 287674, 575348, 600731, 1150696, 1201462, 2402924, 2445229, 4805848, 4890458, 9780916, 10212427, 19561832, 20424854, 40849708, 81699416, 173611259, 347222518, 694445036, 1388890072]

約数ペア:

[(1, 1388890072), (2, 694445036), (4, 347222518), (8, 173611259), (17, 81699416), (34, 40849708), (68, 20424854), (71, 19561832), (136, 10212427), (142, 9780916), (284, 4890458), (289, 4805848), (568, 2445229), (578, 2402924), (1156, 1201462), (1207, 1150696), (2312, 600731), (2414, 575348), (4828, 287674), (8461, 164152), (9656, 143837), (16922, 82076), (20519, 67688), (33844, 41038)]