91854140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{509}}^1\times {\mathrm{1289}}^1$

素因数の和:1814

約数の個数: 48

約数和(自身を含む): 221054400

約数和(自身を除く): 129200260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 509, 1018, 1289, 2036, 2545, 2578, 3563, 5090, 5156, 6445, 7126, 9023, 10180, 12890, 14252, 17815, 18046, 25780, 35630, 36092, 45115, 71260, 90230, 180460, 656101, 1312202, 2624404, 3280505, 4592707, 6561010, 9185414, 13122020, 18370828, 22963535, 45927070, 91854140]

約数ペア:

[(1, 91854140), (2, 45927070), (4, 22963535), (5, 18370828), (7, 13122020), (10, 9185414), (14, 6561010), (20, 4592707), (28, 3280505), (35, 2624404), (70, 1312202), (140, 656101), (509, 180460), (1018, 90230), (1289, 71260), (2036, 45115), (2545, 36092), (2578, 35630), (3563, 25780), (5090, 18046), (5156, 17815), (6445, 14252), (7126, 12890), (9023, 10180)]