205808380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{17471}}^1$

素因数の和:17530

約数の個数: 48

約数和(自身を含む): 469647360

約数和(自身を除く): 263838980

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 190, 310, 380, 589, 620, 1178, 2356, 2945, 5890, 11780, 17471, 34942, 69884, 87355, 174710, 331949, 349420, 541601, 663898, 1083202, 1327796, 1659745, 2166404, 2708005, 3319490, 5416010, 6638980, 10290419, 10832020, 20580838, 41161676, 51452095, 102904190, 205808380]

約数ペア:

[(1, 205808380), (2, 102904190), (4, 51452095), (5, 41161676), (10, 20580838), (19, 10832020), (20, 10290419), (31, 6638980), (38, 5416010), (62, 3319490), (76, 2708005), (95, 2166404), (124, 1659745), (155, 1327796), (190, 1083202), (310, 663898), (380, 541601), (589, 349420), (620, 331949), (1178, 174710), (2356, 87355), (2945, 69884), (5890, 34942), (11780, 17471)]