12321990

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{971}}^1$

素因数の和:1034

約数の個数: 64

約数和(自身を含む): 33592320

約数和(自身を除く): 21270330

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 47, 54, 90, 94, 135, 141, 235, 270, 282, 423, 470, 705, 846, 971, 1269, 1410, 1942, 2115, 2538, 2913, 4230, 4855, 5826, 6345, 8739, 9710, 12690, 14565, 17478, 26217, 29130, 43695, 45637, 52434, 87390, 91274, 131085, 136911, 228185, 262170, 273822, 410733, 456370, 684555, 821466, 1232199, 1369110, 2053665, 2464398, 4107330, 6160995, 12321990]

約数ペア:

[(1, 12321990), (2, 6160995), (3, 4107330), (5, 2464398), (6, 2053665), (9, 1369110), (10, 1232199), (15, 821466), (18, 684555), (27, 456370), (30, 410733), (45, 273822), (47, 262170), (54, 228185), (90, 136911), (94, 131085), (135, 91274), (141, 87390), (235, 52434), (270, 45637), (282, 43695), (423, 29130), (470, 26217), (705, 17478), (846, 14565), (971, 12690), (1269, 9710), (1410, 8739), (1942, 6345), (2115, 5826), (2538, 4855), (2913, 4230)]