20780821638

素因数分解:

$2^1\times 3^2\times {\mathrm{619}}^1\times {\mathrm{1307}}^1\times {\mathrm{1427}}^1$

素因数の和:3361

約数の個数: 48

約数和(自身を含む): 45163984320

約数和(自身を除く): 24383162682

約数列:

[1, 2, 3, 6, 9, 18, 619, 1238, 1307, 1427, 1857, 2614, 2854, 3714, 3921, 4281, 5571, 7842, 8562, 11142, 11763, 12843, 23526, 25686, 809033, 883313, 1618066, 1766626, 1865089, 2427099, 2649939, 3730178, 4854198, 5299878, 5595267, 7281297, 7949817, 11190534, 14562594, 15899634, 16785801, 33571602, 1154490091, 2308980182, 3463470273, 6926940546, 10390410819, 20780821638]

約数ペア:

[(1, 20780821638), (2, 10390410819), (3, 6926940546), (6, 3463470273), (9, 2308980182), (18, 1154490091), (619, 33571602), (1238, 16785801), (1307, 15899634), (1427, 14562594), (1857, 11190534), (2614, 7949817), (2854, 7281297), (3714, 5595267), (3921, 5299878), (4281, 4854198), (5571, 3730178), (7842, 2649939), (8562, 2427099), (11142, 1865089), (11763, 1766626), (12843, 1618066), (23526, 883313), (25686, 809033)]