2821860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1$

素因数の和:333

約数の個数: 72

約数和(自身を含む): 8733816

約数和(自身を除く): 5911956

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 180, 183, 244, 257, 305, 366, 514, 549, 610, 732, 771, 915, 1028, 1098, 1220, 1285, 1542, 1830, 2196, 2313, 2570, 2745, 3084, 3660, 3855, 4626, 5140, 5490, 7710, 9252, 10980, 11565, 15420, 15677, 23130, 31354, 46260, 47031, 62708, 78385, 94062, 141093, 156770, 188124, 235155, 282186, 313540, 470310, 564372, 705465, 940620, 1410930, 2821860]

約数ペア:

[(1, 2821860), (2, 1410930), (3, 940620), (4, 705465), (5, 564372), (6, 470310), (9, 313540), (10, 282186), (12, 235155), (15, 188124), (18, 156770), (20, 141093), (30, 94062), (36, 78385), (45, 62708), (60, 47031), (61, 46260), (90, 31354), (122, 23130), (180, 15677), (183, 15420), (244, 11565), (257, 10980), (305, 9252), (366, 7710), (514, 5490), (549, 5140), (610, 4626), (732, 3855), (771, 3660), (915, 3084), (1028, 2745), (1098, 2570), (1220, 2313), (1285, 2196), (1542, 1830)]