991630816

素因数分解:

$2^5\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{5449}}^1$

素因数の和:5528

約数の個数: 72

約数和(自身を含む): 2191946400

約数和(自身を除く): 1200315584

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 47, 88, 94, 121, 176, 188, 242, 352, 376, 484, 517, 752, 968, 1034, 1504, 1936, 2068, 3872, 4136, 5449, 5687, 8272, 10898, 11374, 16544, 21796, 22748, 43592, 45496, 59939, 87184, 90992, 119878, 174368, 181984, 239756, 256103, 479512, 512206, 659329, 959024, 1024412, 1318658, 1918048, 2048824, 2637316, 2817133, 4097648, 5274632, 5634266, 8195296, 10549264, 11268532, 21098528, 22537064, 30988463, 45074128, 61976926, 90148256, 123953852, 247907704, 495815408, 991630816]

約数ペア:

[(1, 991630816), (2, 495815408), (4, 247907704), (8, 123953852), (11, 90148256), (16, 61976926), (22, 45074128), (32, 30988463), (44, 22537064), (47, 21098528), (88, 11268532), (94, 10549264), (121, 8195296), (176, 5634266), (188, 5274632), (242, 4097648), (352, 2817133), (376, 2637316), (484, 2048824), (517, 1918048), (752, 1318658), (968, 1024412), (1034, 959024), (1504, 659329), (1936, 512206), (2068, 479512), (3872, 256103), (4136, 239756), (5449, 181984), (5687, 174368), (8272, 119878), (10898, 90992), (11374, 87184), (16544, 59939), (21796, 45496), (22748, 43592)]