25777520

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1$

素因数の和:354

約数の個数: 80

約数和(自身を含む): 63745920

約数和(自身を除く): 37968400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 41, 58, 80, 82, 116, 145, 164, 205, 232, 271, 290, 328, 410, 464, 542, 580, 656, 820, 1084, 1160, 1189, 1355, 1640, 2168, 2320, 2378, 2710, 3280, 4336, 4756, 5420, 5945, 7859, 9512, 10840, 11111, 11890, 15718, 19024, 21680, 22222, 23780, 31436, 39295, 44444, 47560, 55555, 62872, 78590, 88888, 95120, 111110, 125744, 157180, 177776, 222220, 314360, 322219, 444440, 628720, 644438, 888880, 1288876, 1611095, 2577752, 3222190, 5155504, 6444380, 12888760, 25777520]

約数ペア:

[(1, 25777520), (2, 12888760), (4, 6444380), (5, 5155504), (8, 3222190), (10, 2577752), (16, 1611095), (20, 1288876), (29, 888880), (40, 644438), (41, 628720), (58, 444440), (80, 322219), (82, 314360), (116, 222220), (145, 177776), (164, 157180), (205, 125744), (232, 111110), (271, 95120), (290, 88888), (328, 78590), (410, 62872), (464, 55555), (542, 47560), (580, 44444), (656, 39295), (820, 31436), (1084, 23780), (1160, 22222), (1189, 21680), (1355, 19024), (1640, 15718), (2168, 11890), (2320, 11111), (2378, 10840), (2710, 9512), (3280, 7859), (4336, 5945), (4756, 5420)]