1781291248

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{7963}}^1$

素因数の和:8054

約数の個数: 80

約数和(自身を含む): 3981745152

約数和(自身を除く): 2200453904

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 41, 44, 62, 82, 88, 124, 164, 176, 248, 328, 341, 451, 496, 656, 682, 902, 1271, 1364, 1804, 2542, 2728, 3608, 5084, 5456, 7216, 7963, 10168, 13981, 15926, 20336, 27962, 31852, 55924, 63704, 87593, 111848, 127408, 175186, 223696, 246853, 326483, 350372, 493706, 652966, 700744, 987412, 1305932, 1401488, 1974824, 2611864, 2715383, 3591313, 3949648, 5223728, 5430766, 7182626, 10120973, 10861532, 14365252, 20241946, 21723064, 28730504, 40483892, 43446128, 57461008, 80967784, 111330703, 161935568, 222661406, 445322812, 890645624, 1781291248]

約数ペア:

[(1, 1781291248), (2, 890645624), (4, 445322812), (8, 222661406), (11, 161935568), (16, 111330703), (22, 80967784), (31, 57461008), (41, 43446128), (44, 40483892), (62, 28730504), (82, 21723064), (88, 20241946), (124, 14365252), (164, 10861532), (176, 10120973), (248, 7182626), (328, 5430766), (341, 5223728), (451, 3949648), (496, 3591313), (656, 2715383), (682, 2611864), (902, 1974824), (1271, 1401488), (1364, 1305932), (1804, 987412), (2542, 700744), (2728, 652966), (3608, 493706), (5084, 350372), (5456, 326483), (7216, 246853), (7963, 223696), (10168, 175186), (13981, 127408), (15926, 111848), (20336, 87593), (27962, 63704), (31852, 55924)]