31233280

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1877}}^1$

素因数の和:1911

約数の個数: 72

約数和(自身を含む): 80611272

約数和(自身を除く): 49377992

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1280, 1664, 1877, 2080, 3328, 3754, 4160, 7508, 8320, 9385, 15016, 16640, 18770, 24401, 30032, 37540, 48802, 60064, 75080, 97604, 120128, 122005, 150160, 195208, 240256, 244010, 300320, 390416, 480512, 488020, 600640, 780832, 976040, 1201280, 1561664, 1952080, 2402560, 3123328, 3904160, 6246656, 7808320, 15616640, 31233280]

約数ペア:

[(1, 31233280), (2, 15616640), (4, 7808320), (5, 6246656), (8, 3904160), (10, 3123328), (13, 2402560), (16, 1952080), (20, 1561664), (26, 1201280), (32, 976040), (40, 780832), (52, 600640), (64, 488020), (65, 480512), (80, 390416), (104, 300320), (128, 244010), (130, 240256), (160, 195208), (208, 150160), (256, 122005), (260, 120128), (320, 97604), (416, 75080), (520, 60064), (640, 48802), (832, 37540), (1040, 30032), (1280, 24401), (1664, 18770), (1877, 16640), (2080, 15016), (3328, 9385), (3754, 8320), (4160, 7508)]