18785408

素因数分解:

$2^7\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:217

約数の個数: 64

約数和(自身を含む): 40483800

約数和(自身を除く): 21698392

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 89, 97, 128, 136, 178, 194, 272, 356, 388, 544, 712, 776, 1088, 1424, 1513, 1552, 1649, 2176, 2848, 3026, 3104, 3298, 5696, 6052, 6208, 6596, 8633, 11392, 12104, 12416, 13192, 17266, 24208, 26384, 34532, 48416, 52768, 69064, 96832, 105536, 138128, 146761, 193664, 211072, 276256, 293522, 552512, 587044, 1105024, 1174088, 2348176, 4696352, 9392704, 18785408]

約数ペア:

[(1, 18785408), (2, 9392704), (4, 4696352), (8, 2348176), (16, 1174088), (17, 1105024), (32, 587044), (34, 552512), (64, 293522), (68, 276256), (89, 211072), (97, 193664), (128, 146761), (136, 138128), (178, 105536), (194, 96832), (272, 69064), (356, 52768), (388, 48416), (544, 34532), (712, 26384), (776, 24208), (1088, 17266), (1424, 13192), (1513, 12416), (1552, 12104), (1649, 11392), (2176, 8633), (2848, 6596), (3026, 6208), (3104, 6052), (3298, 5696)]