28972790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{197}}^1$

素因数の和:413

約数の個数: 64

約数和(自身を含む): 65691648

約数和(自身を除く): 36718858

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 191, 197, 382, 385, 394, 770, 955, 985, 1337, 1379, 1910, 1970, 2101, 2167, 2674, 2758, 4202, 4334, 6685, 6895, 10505, 10835, 13370, 13790, 14707, 15169, 21010, 21670, 29414, 30338, 37627, 73535, 75254, 75845, 147070, 151690, 188135, 263389, 376270, 413897, 526778, 827794, 1316945, 2069485, 2633890, 2897279, 4138970, 5794558, 14486395, 28972790]

約数ペア:

[(1, 28972790), (2, 14486395), (5, 5794558), (7, 4138970), (10, 2897279), (11, 2633890), (14, 2069485), (22, 1316945), (35, 827794), (55, 526778), (70, 413897), (77, 376270), (110, 263389), (154, 188135), (191, 151690), (197, 147070), (382, 75845), (385, 75254), (394, 73535), (770, 37627), (955, 30338), (985, 29414), (1337, 21670), (1379, 21010), (1910, 15169), (1970, 14707), (2101, 13790), (2167, 13370), (2674, 10835), (2758, 10505), (4202, 6895), (4334, 6685)]