181989540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{2897}}^1$

素因数の和:3261

約数の個数: 72

約数和(自身を含む): 553807800

約数和(自身を除く): 371818260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 349, 698, 1047, 1396, 1745, 2094, 2897, 3141, 3490, 4188, 5235, 5794, 6282, 6980, 8691, 10470, 11588, 12564, 14485, 15705, 17382, 20940, 26073, 28970, 31410, 34764, 43455, 52146, 57940, 62820, 86910, 104292, 130365, 173820, 260730, 521460, 1011053, 2022106, 3033159, 4044212, 5055265, 6066318, 9099477, 10110530, 12132636, 15165795, 18198954, 20221060, 30331590, 36397908, 45497385, 60663180, 90994770, 181989540]

約数ペア:

[(1, 181989540), (2, 90994770), (3, 60663180), (4, 45497385), (5, 36397908), (6, 30331590), (9, 20221060), (10, 18198954), (12, 15165795), (15, 12132636), (18, 10110530), (20, 9099477), (30, 6066318), (36, 5055265), (45, 4044212), (60, 3033159), (90, 2022106), (180, 1011053), (349, 521460), (698, 260730), (1047, 173820), (1396, 130365), (1745, 104292), (2094, 86910), (2897, 62820), (3141, 57940), (3490, 52146), (4188, 43455), (5235, 34764), (5794, 31410), (6282, 28970), (6980, 26073), (8691, 20940), (10470, 17382), (11588, 15705), (12564, 14485)]