1920839865

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{2287}}^1$

素因数の和:2742

約数の個数: 64

約数和(自身を含む): 3707658240

約数和(自身を除く): 1786818375

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 399, 421, 665, 1263, 1995, 2105, 2287, 2947, 6315, 6861, 7999, 8841, 11435, 14735, 16009, 23997, 34305, 39995, 43453, 44205, 48027, 55993, 80045, 119985, 130359, 167979, 217265, 240135, 279965, 304171, 651795, 839895, 912513, 962827, 1520855, 2888481, 4562565, 4814135, 6739789, 14442405, 18293713, 20219367, 33698945, 54881139, 91468565, 101096835, 128055991, 274405695, 384167973, 640279955, 1920839865]

約数ペア:

[(1, 1920839865), (3, 640279955), (5, 384167973), (7, 274405695), (15, 128055991), (19, 101096835), (21, 91468565), (35, 54881139), (57, 33698945), (95, 20219367), (105, 18293713), (133, 14442405), (285, 6739789), (399, 4814135), (421, 4562565), (665, 2888481), (1263, 1520855), (1995, 962827), (2105, 912513), (2287, 839895), (2947, 651795), (6315, 304171), (6861, 279965), (7999, 240135), (8841, 217265), (11435, 167979), (14735, 130359), (16009, 119985), (23997, 80045), (34305, 55993), (39995, 48027), (43453, 44205)]