78720256

素因数分解:

$2^8\times {\mathrm{61}}^1\times {\mathrm{71}}^2$

素因数の和:219

約数の個数: 54

約数和(自身を含む): 161990066

約数和(自身を除く): 83269810

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 71, 122, 128, 142, 244, 256, 284, 488, 568, 976, 1136, 1952, 2272, 3904, 4331, 4544, 5041, 7808, 8662, 9088, 10082, 15616, 17324, 18176, 20164, 34648, 40328, 69296, 80656, 138592, 161312, 277184, 307501, 322624, 554368, 615002, 645248, 1108736, 1230004, 1290496, 2460008, 4920016, 9840032, 19680064, 39360128, 78720256]

約数ペア:

[(1, 78720256), (2, 39360128), (4, 19680064), (8, 9840032), (16, 4920016), (32, 2460008), (61, 1290496), (64, 1230004), (71, 1108736), (122, 645248), (128, 615002), (142, 554368), (244, 322624), (256, 307501), (284, 277184), (488, 161312), (568, 138592), (976, 80656), (1136, 69296), (1952, 40328), (2272, 34648), (3904, 20164), (4331, 18176), (4544, 17324), (5041, 15616), (7808, 10082), (8662, 9088)]