20654830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{1021}}^1$

素因数の和:1069

約数の個数: 48

約数和(自身を含む): 45180576

約数和(自身を除く): 24525746

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 70, 85, 119, 170, 238, 289, 578, 595, 1021, 1190, 1445, 2023, 2042, 2890, 4046, 5105, 7147, 10115, 10210, 14294, 17357, 20230, 34714, 35735, 71470, 86785, 121499, 173570, 242998, 295069, 590138, 607495, 1214990, 1475345, 2065483, 2950690, 4130966, 10327415, 20654830]

約数ペア:

[(1, 20654830), (2, 10327415), (5, 4130966), (7, 2950690), (10, 2065483), (14, 1475345), (17, 1214990), (34, 607495), (35, 590138), (70, 295069), (85, 242998), (119, 173570), (170, 121499), (238, 86785), (289, 71470), (578, 35735), (595, 34714), (1021, 20230), (1190, 17357), (1445, 14294), (2023, 10210), (2042, 10115), (2890, 7147), (4046, 5105)]