77723240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1997}}^1$

素因数の和:2154

約数の個数: 64

約数和(自身を含む): 201398400

約数和(自身を除く): 123675160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 139, 140, 278, 280, 556, 695, 973, 1112, 1390, 1946, 1997, 2780, 3892, 3994, 4865, 5560, 7784, 7988, 9730, 9985, 13979, 15976, 19460, 19970, 27958, 38920, 39940, 55916, 69895, 79880, 111832, 139790, 277583, 279580, 555166, 559160, 1110332, 1387915, 1943081, 2220664, 2775830, 3886162, 5551660, 7772324, 9715405, 11103320, 15544648, 19430810, 38861620, 77723240]

約数ペア:

[(1, 77723240), (2, 38861620), (4, 19430810), (5, 15544648), (7, 11103320), (8, 9715405), (10, 7772324), (14, 5551660), (20, 3886162), (28, 2775830), (35, 2220664), (40, 1943081), (56, 1387915), (70, 1110332), (139, 559160), (140, 555166), (278, 279580), (280, 277583), (556, 139790), (695, 111832), (973, 79880), (1112, 69895), (1390, 55916), (1946, 39940), (1997, 38920), (2780, 27958), (3892, 19970), (3994, 19460), (4865, 15976), (5560, 13979), (7784, 9985), (7988, 9730)]