28198280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{3373}}^1$

素因数の和:3414

約数の個数: 64

約数和(自身を含む): 72878400

約数和(自身を除く): 44680120

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 152, 190, 209, 220, 380, 418, 440, 760, 836, 1045, 1672, 2090, 3373, 4180, 6746, 8360, 13492, 16865, 26984, 33730, 37103, 64087, 67460, 74206, 128174, 134920, 148412, 185515, 256348, 296824, 320435, 371030, 512696, 640870, 704957, 742060, 1281740, 1409914, 1484120, 2563480, 2819828, 3524785, 5639656, 7049570, 14099140, 28198280]

約数ペア:

[(1, 28198280), (2, 14099140), (4, 7049570), (5, 5639656), (8, 3524785), (10, 2819828), (11, 2563480), (19, 1484120), (20, 1409914), (22, 1281740), (38, 742060), (40, 704957), (44, 640870), (55, 512696), (76, 371030), (88, 320435), (95, 296824), (110, 256348), (152, 185515), (190, 148412), (209, 134920), (220, 128174), (380, 74206), (418, 67460), (440, 64087), (760, 37103), (836, 33730), (1045, 26984), (1672, 16865), (2090, 13492), (3373, 8360), (4180, 6746)]