258526100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2657}}^1$

素因数の和:2817

約数の個数: 72

約数和(自身を含む): 646000320

約数和(自身を除く): 387474220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 139, 140, 175, 278, 350, 556, 695, 700, 973, 1390, 1946, 2657, 2780, 3475, 3892, 4865, 5314, 6950, 9730, 10628, 13285, 13900, 18599, 19460, 24325, 26570, 37198, 48650, 53140, 66425, 74396, 92995, 97300, 132850, 185990, 265700, 369323, 371980, 464975, 738646, 929950, 1477292, 1846615, 1859900, 2585261, 3693230, 5170522, 7386460, 9233075, 10341044, 12926305, 18466150, 25852610, 36932300, 51705220, 64631525, 129263050, 258526100]

約数ペア:

[(1, 258526100), (2, 129263050), (4, 64631525), (5, 51705220), (7, 36932300), (10, 25852610), (14, 18466150), (20, 12926305), (25, 10341044), (28, 9233075), (35, 7386460), (50, 5170522), (70, 3693230), (100, 2585261), (139, 1859900), (140, 1846615), (175, 1477292), (278, 929950), (350, 738646), (556, 464975), (695, 371980), (700, 369323), (973, 265700), (1390, 185990), (1946, 132850), (2657, 97300), (2780, 92995), (3475, 74396), (3892, 66425), (4865, 53140), (5314, 48650), (6950, 37198), (9730, 26570), (10628, 24325), (13285, 19460), (13900, 18599)]