145320280

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{74143}}^1$

素因数の和:74168

約数の個数: 48

約数和(自身を含む): 380358720

約数和(自身を除く): 235038440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 74143, 148286, 296572, 370715, 519001, 593144, 741430, 1038002, 1482860, 2076004, 2595005, 2965720, 3633007, 4152008, 5190010, 7266014, 10380020, 14532028, 18165035, 20760040, 29064056, 36330070, 72660140, 145320280]

約数ペア:

[(1, 145320280), (2, 72660140), (4, 36330070), (5, 29064056), (7, 20760040), (8, 18165035), (10, 14532028), (14, 10380020), (20, 7266014), (28, 5190010), (35, 4152008), (40, 3633007), (49, 2965720), (56, 2595005), (70, 2076004), (98, 1482860), (140, 1038002), (196, 741430), (245, 593144), (280, 519001), (392, 370715), (490, 296572), (980, 148286), (1960, 74143)]